ISEE Lower Level Quiz: Estimating Totals From Tables
20 questions · exam conditions
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Estimating Totals From TablesQuestion 1 of 20

At a farmer's market, Maria's mother buys 4 pounds of apples at $2.49 per pound, 2 pounds of tomatoes at $3.99 per pound, and a carton of eggs for $3.55. Which of the following is the most reasonable estimate of her total bill?

about $17
about $21.50
about $24.50
about $10.00
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ISEE Lower Level Quiz

ISEE Lower Level Quiz: Estimating Totals From Tables

Practice Estimating Totals From Tables in ISEE Lower Level with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Estimating Totals From Tables, giving you a quick way to practice the rules, question types, and explanations that matter most for ISEE Lower Level.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

At a farmer's market, Maria's mother buys 4 pounds of apples at $2.49 per pound, 2 pounds of tomatoes at $3.99 per pound, and a carton of eggs for $3.55. Which of the following is the most reasonable estimate of her total bill?

  1. about $17
  2. about $21.50 (correct answer)
  3. about $24.50
  4. about $10.00
Explanation: To estimate, round the prices to numbers that are easy to work with. Round $2.49 to $2.50, $3.99 to $4.00, and $3.55 to $3.50. The estimated cost is (4 × $2.50) + (2 × $4.00) + $3.50 = $10.00 + $8.00 + $3.50 = $21.50. The exact cost is $21.49.

Question 2

A family orders from a pizzeria. They get a large pizza for $19.79, an order of breadsticks for $6.29, and 4 sodas for $2.49 each. What is the most reasonable estimate for the total cost of their meal?

  1. about $36 (correct answer)
  2. about $28
  3. about $42
  4. about $32
Explanation: Estimate by rounding each price. Round $19.79 to $20, $6.29 to $6, and $2.49 to $2.50. The estimated total is $20 + $6 + (4 × $2.50) = $26 + $10 = $36. The exact cost is $36.04.

Question 3

At a car wash, the price for a basic wash is $12.99. The manager offers an interior cleaning for an additional $8.95 and a tire shine for an extra $4.25. If a customer gets all three services for a van and a car, which is the best estimate for the total cost?

  1. about $26
  2. about $40
  3. about $52 (correct answer)
  4. about $60
Explanation: First, estimate the cost for one vehicle. Round $12.99 to $13, $8.95 to $9, and $4.25 to $4. The cost for one vehicle is about $13 + $9 + $4 = $26. Since the customer gets services for two vehicles (van and car), the total estimated cost is 2 × $26 = $52. The exact cost is $52.38.

Question 4

At a school store, Leo buys 3 notebooks that cost $2.95 each, 5 pens that cost $1.49 each, and 2 large erasers that cost $0.79 each. Which is the best estimate for the total cost of Leo's items, not including tax?

  1. between $13 and $15
  2. between $15 and $17
  3. between $17 and $19 (correct answer)
  4. between $19 and $21
Explanation: To estimate the total cost, round the prices to easier numbers. Round $2.95 to $3.00, $1.49 to $1.50, and $0.79 to $0.80. The estimated cost is (3 × $3.00) + (5 × $1.50) + (2 × $0.80) = $9.00 + $7.50 + $1.60 = $18.10. This amount is between $17 and $19. The exact cost is $17.88.

Question 5

A family goes to the movies. They buy 2 large popcorns for $8.95 each, 4 small sodas for $4.75 each, and 1 box of candy for $3.25. What is the best estimate for the total amount the family spent on snacks?

  1. between $34 and $36
  2. between $37 and $39
  3. between $40 and $42 (correct answer)
  4. between $43 and $45
Explanation: To find the best estimate, round the prices. Round $8.95 to $9.00, $4.75 to $5.00, and $3.25 to $3.00. The estimated cost is (2 × $9.00) + (4 × $5.00) + $3.00 = $18.00 + $20.00 + $3.00 = $41.00. This amount is between $40 and $42. The exact cost is $40.15.

Question 6

For a classroom party, a teacher buys 12 balloons at $0.78 each, 3 packages of paper plates at $4.19 per package, and 2 large bottles of juice at $3.89 each. Which is the best estimate of the total cost?

  1. about $25
  2. about $30 (correct answer)
  3. about $35
  4. about $21
Explanation: Estimate by rounding each price. Round $0.78 to $0.80, $4.19 to $4.00, and $3.89 to $4.00. The estimated total is (12 × $0.80) + (3 × $4.00) + (2 × $4.00) = $9.60 + $12.00 + $8.00 = $29.60. This is closest to $30. The exact cost is $29.71.

Question 7

A group of friends has lunch at a café. They order 4 sandwiches at $8.29 each and 4 lemonades at $2.89 each. What is the best estimate for the total bill for the group?

  1. about $33
  2. about $45 (correct answer)
  3. about $52
  4. about $11
Explanation: To estimate, round the prices. Round $8.29 to $8.25 and $2.89 to $3.00. The estimated total is (4 × $8.25) + (4 × $3.00) = $33.00 + $12.00 = $45.00. The exact cost is $44.68.

Question 8

For his birthday, David receives money to spend at a toy store. He buys a board game for $22.89, a model car for $14.25, and a pack of trading cards for $4.99. Which range includes the best estimate of the total he spent?

  1. between $35 and $38
  2. between $38 and $41
  3. between $41 and $44 (correct answer)
  4. between $44 and $47
Explanation: Estimate the total by rounding. Round $22.89 to $23, $14.25 to $14, and $4.99 to $5. The estimated cost is $23 + $14 + $5 = $42. This amount is between $41 and $44. The exact cost is $42.13.

Question 9

For a local food drive, a family donates 5 cans of soup at $1.89 per can, 2 boxes of pasta at $2.29 per box, and a bag of rice for $4.79. Which is the best estimate of the total value of their donation?

  1. between $13 and $15
  2. between $15 and $17
  3. between $17 and $19 (correct answer)
  4. between $19 and $21
Explanation: To estimate, round the prices. Round $1.89 to $2.00, $2.29 to $2.25, and $4.79 to $5.00. The estimated cost is (5 × $2.00) + (2 × $2.25) + $5.00 = $10.00 + $4.50 + $5.00 = $19.50. This is between $17 and $19. A better estimate is (5 x $1.90) + (2 x $2.30) + $4.80 = $9.50 + $4.60 + $4.80 = $18.90, which is also in the correct range. The exact cost is $18.92.

Question 10

To bake a cake, Carlos buys ingredients. He purchases 2.5 pounds of flour at $1.99 per pound, 3 cartons of eggs at $2.89 each, and a bag of sugar for $4.15. What is the best estimate for the total cost of these items?

  1. about $12
  2. about $15
  3. about $18 (correct answer)
  4. about $9
Explanation: To estimate, round the prices. Round $1.99 to $2.00, and $2.89 to $3.00, and $4.15 to $4.00. The estimated cost is (2.5 × $2.00) + (3 × $3.00) + $4.00 = $5.00 + $9.00 + $4.00 = $18.00. The exact cost is $17.82.

Question 11

At a craft store, Anya purchases 4 bottles of paint for $2.29 each, 1 large canvas for $7.95, and a set of 3 paintbrushes for $1.89 per brush. Which range contains the best estimate of her total cost?

  1. between $18 and $20
  2. between $20 and $22
  3. between $22 and $24 (correct answer)
  4. between $24 and $26
Explanation: To estimate, round the prices. Round $2.29 to $2.25, $7.95 to $8.00, and $1.89 to $2.00. The estimated cost is (4 × $2.25) + $8.00 + (3 × $2.00) = $9.00 + $8.00 + $6.00 = $23.00. This amount falls between $22 and $24. The exact cost is $22.78.

Question 12

Sam is at a bakery. He buys 2 loaves of bread for $4.45 each, 6 large cookies for $1.29 each, and a slice of cake for $5.85. What is the most reasonable estimate for his total purchase?

  1. between $19 and $21
  2. between $22 and $24 (correct answer)
  3. between $25 and $27
  4. between $11 and $13
Explanation: To estimate the total, round the prices. Round $4.45 to $4.50, $1.29 to $1.25, and $5.85 to $6.00. The estimated cost is (2 × $4.50) + (6 × $1.25) + $6.00 = $9.00 + $7.50 + $6.00 = $22.50. This falls between $22 and $24. The exact cost is $22.49.

Question 13

At a pet store, a family buys a bag of dog food for $24.89, 3 chew toys for $4.15 each, and a dog leash for $11.97. Which of the following is the best estimate for the total cost before tax?

  1. about $42
  2. about $49 (correct answer)
  3. about $52
  4. about $40
Explanation: Estimate by rounding each price to the nearest dollar. Round $24.89 to $25, $4.15 to $4, and $11.97 to $12. The estimated total is $25 + (3 × $4) + $12 = $25 + $12 + $12 = $49. The exact cost is $49.31.

Question 14

Chloe is buying new clothes. She picks out a t-shirt for $15.97, a pair of shorts for $21.19, and a pack of 3 hair ties for $4.89. Which range contains the best estimate of her total bill?

  1. between $36 and $39
  2. between $39 and $42
  3. between $42 and $45 (correct answer)
  4. between $45 and $48
Explanation: To estimate, round each price to the nearest dollar. Round $15.97 to $16, $21.19 to $21, and $4.89 to $5. The estimated total cost is $16 + $21 + $5 = $42. This amount is between $42 and $45. The exact cost is $42.05.

Question 15

On vacation, a tourist buys souvenirs. They purchase 2 t-shirts for $18.99 each, a snow globe for $12.15, and 4 keychains for $3.75 each. Which is the best estimate of the total amount spent?

  1. between $55 and $60
  2. between $60 and $65
  3. between $34 and $39
  4. between $65 and $70 (correct answer)
Explanation: When you see a question asking for the "best estimate," you're being tested on your ability to round numbers strategically to make mental math easier, then calculate an approximate total. Let's round each item to a nearby "friendly" number: The t-shirts cost $18.99 each, which rounds to about $19. Two t-shirts would be $19 × 2 = $38. The snow globe costs $12.15, which rounds to about $12. The keychains cost $3.75 each, which rounds to about $4. Four keychains would be $4 × 4 = $16. Adding these estimates: $38 + $12 + $16 = $66. This falls clearly in the range of $65 to $70, making D correct. Let's see why the other choices miss the mark. Choice A ($55 to 60)istoolow—thismighthappenifyouforgottodoublethet−shirtcostorsignificantlyunder−roundedtheprices.ChoiceB(60) is too low—this might happen if you forgot to double the t-shirt cost or significantly under-rounded the prices. Choice B (60 to $65) is close but still underestimates the total; you might land here if you rounded too aggressively downward (like treating the t-shirts as $17 each instead of 19).ChoiceC(19). Choice C (34 to $39) is far too low and likely results from a major calculation error, such as forgetting to multiply the quantities or only accounting for some of the items. The key to estimation problems is strategic rounding—round to numbers that make multiplication easy (like $19 instead of $18.99) while staying close to the original values. Don't round everything down or everything up; aim for accuracy in your approximation.

Question 16

At a sporting goods store, a soccer player buys a new ball for $24.95, a pair of shin guards for $14.89, and 3 pairs of socks for $7.25 per pair. What is the best estimate for the total cost?

  1. about $47
  2. about $55
  3. about $62 (correct answer)
  4. about $70
Explanation: Estimate by rounding each price. Round $24.95 to $25, $14.89 to $15, and $7.25 to $7. The estimated cost is $25 + $15 + (3 × $7) = $40 + $21 = $61. This is closest to $62. The exact cost is $61.59.

Question 17

At an ice cream shop, a family of four each gets a double-scoop cone. Each cone costs $4.85. They also buy a bottle of water for $1.95. What is the best estimate of their total cost?

  1. about $16
  2. about $22 (correct answer)
  3. about $26
  4. about $7
Explanation: To estimate, round the prices. Round $4.85 to $5.00 and $1.95 to $2.00. The estimated cost for the 4 cones and 1 water is (4 × $5.00) + $2.00 = $20.00 + $2.00 = $22.00. The exact cost is $21.35.

Question 18

For her garden, Mrs. Gable buys 3 bags of soil at $6.98 per bag, a watering can for $12.49, and 5 small flower plants at $2.75 each. Which is the best estimate for what she spent?

  1. between $40 and $43
  2. between $43 and $46
  3. between $37 and $40
  4. between $46 and $49 (correct answer)
Explanation: This is an estimation problem that tests your ability to round numbers strategically to quickly approximate a total cost. When you see "best estimate" questions, you want to round each price to a nearby convenient number, then calculate. Let's round each item to make the math easier: 3 bags of soil at $6.98 each rounds to 3 × $7 = $21. The watering can at $12.49 rounds to about $12. Five flower plants at $2.75 each rounds to 5 × $3 = $15 (since $2.75 is close to $3). Adding these rounded amounts: $21 + $12 + $15 = $48. This falls squarely in the range of $46 to $49, confirming answer D. Looking at the wrong answers: Choice A ($40-$43) is too low because it likely comes from rounding too aggressively downward, perhaps treating the plants as $2 each instead of closer to 3.ChoiceB(3. Choice B (43-$46) is also too low, possibly from rounding the soil bags down to $6 each rather than up to 7.ChoiceC(7. Choice C (37-$40) is significantly too low and suggests multiple rounding errors, like treating expensive items as much cheaper than they actually are. The key strategy for estimation problems is to round to numbers that make mental math easy, but round some up and some down to balance out your errors. Don't automatically round everything down, as this will consistently underestimate totals. Practice rounding to the nearest dollar or half-dollar to build speed and accuracy.

Question 19

At a school book fair, a student buys 3 paperback books for $6.95 each, a bookmark for $1.49, and a poster for $5.25. What is the best estimate for the student's total purchase?

  1. about $22
  2. about $25
  3. about $14
  4. about $28 (correct answer)
Explanation: When you encounter estimation problems, you're practicing a valuable real-world skill: quickly approximating costs without getting bogged down in exact calculations. The key is to round each price to a nearby "friendly" number that's easy to work with mentally. Let's round each item to the nearest dollar: 3 paperback books at $6.95 each rounds to $7.00 per book, giving us $3 × $7 = $21. The bookmark at $1.49 rounds to $1, and the poster at $5.25 rounds to $5. Adding these estimates together: $21 + $1 + $5 = $27. Since $27 is closest to $28, answer choice D is correct. Let's examine why the other choices miss the mark. Choice A ($22) significantly underestimates the total—this might happen if you only counted the books and forgot the other items, or if you rounded the book prices down too aggressively to 6each.ChoiceB(6 each. Choice B (25) is closer but still too low; you might get this if you rounded the books to $6.50 each instead of $7, giving you about $19.50 for books plus 6.50fortheotheritems.ChoiceC(6.50 for the other items. Choice C (14) is far too low and suggests a major calculation error, perhaps only counting two books or making a significant arithmetic mistake. For estimation questions, remember to round to the nearest dollar (or sometimes nearest $5 or $10 for larger numbers), then choose the answer closest to your estimate. Don't worry about being perfectly precise—that's not the goal of estimation problems.

Question 20

At a hardware store, Mr. Chen buys a hammer for $14.95, a box of 100 nails for $6.15, and 3 cans of paint for $19.99 each. Which is the best estimate for the total amount he spent?

  1. between $70 and $75
  2. between $75 and $80
  3. between $40 and $45
  4. between $80 and $85 (correct answer)
Explanation: When you see a question asking for the "best estimate," you're being tested on your ability to round numbers strategically to make mental math easier while still getting a reasonable approximation. Let's round each price to make the calculation simpler. The hammer costs $14.95, which rounds to $15. The box of nails costs $6.15, which rounds to $6. Each paint can costs $19.99, which rounds to $20, and since Mr. Chen buys 3 cans, that's $20 × 3 = $60. Adding our rounded amounts: $15 + $6 + $60 = $81. This falls clearly between $80 and $85, making choice D correct. Looking at the wrong answers: Choice A ($70-75)istoolowbecauseitlikelycomesfromunderestimatingthepaintcostsorforgettingthatMr.Chenbought3cans.ChoiceB(75) is too low because it likely comes from underestimating the paint costs or forgetting that Mr. Chen bought 3 cans. Choice B (75-$80) is close but still underestimates the total—you might get this if you rounded the paint cans down to $18 each instead of up to 20.ChoiceC(20. Choice C (40-$45) is far too low and suggests a major calculation error, possibly forgetting to multiply the paint price by 3 or mixing up which items cost what. For estimation problems, round to the nearest convenient number (like $5 or $10) rather than always rounding to the nearest dollar. This makes mental math faster and your estimates more accurate. Also, double-check that you've accounted for quantities—here, remembering that Mr. Chen bought 3 paint cans was crucial.