ISEE Middle Level Quantitative Reasoning Flashcards: Place Value Estimation

What this deck covers

This deck focuses on Place Value Estimation, giving you a quick way to review the definitions, rules, and examples that matter most for ISEE Middle Level Quantitative Reasoning.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What is the estimated value of $7.36$ rounded to the nearest tenth?

Answer: $7.4$. To round 7.36 to the nearest tenth, examine the hundredths digit (6), which is 5 or greater, so increase the tenths digit from 3 to 4.

Flashcard 2: What is the estimated value of $0.084$ rounded to the nearest hundredth?

Answer: $0.08$. To round 0.084 to the nearest hundredth, examine the thousandths digit (4), which is less than 5, so keep the hundredths digit as 8.

Flashcard 3: What is $8{,}943 - 3{,}112$ estimated by rounding each number to the nearest hundred?

Answer: $5{,}800$. Round 8,943 to 8,900 and 3,112 to 3,100, both to the nearest hundred, then subtract to estimate the difference.

Flashcard 4: What is $49 imes 21$ estimated by rounding to the nearest ten?

Answer: $1{,}000$. Round 49 to 50 and 21 to 20, both to the nearest ten, then multiply to estimate the product.

Flashcard 5: What is $198 imes 52$ estimated by rounding to the nearest ten?

Answer: $10{,}000$. Round 198 to 200 and 52 to 50, both to the nearest ten, then multiply to estimate the product.

Flashcard 6: What is $3{,}920 imes 61$ estimated by rounding to the nearest thousand and ten?

Answer: $240{,}000$. Round 3,920 to 4,000 (nearest thousand) and 61 to 60 (nearest ten), then multiply to estimate the product.

Flashcard 7: What is $7{,}260 imes 0.49$ estimated by rounding to $7{,}000$ and $0.5$?

Answer: $3{,}500$. Round 7,260 to 7,000 and 0.49 to 0.5, then multiply to estimate the product.

Flashcard 8: What is $3{,}984 imes 25$ estimated using $4{,}000 imes 25$?

Answer: $100{,}000$. Round 3,984 to 4,000 and multiply by 25 to estimate the product.

Flashcard 9: What is $5{,}961 imes 0.12$ estimated by rounding to $6{,}000 imes 0.1$?

Answer: $600$. Round 5,961 to 6,000 and 0.12 to 0.1, then multiply to estimate the product.

Flashcard 10: What is the estimated value of $63{,}449$ rounded to the nearest thousand?

Answer: $63{,}000$. To round 63,449 to the nearest thousand, examine the hundreds digit (4), which is less than 5, so keep the thousands digit as 3.

Flashcard 11: What is $738 imes 0.09$ estimated by rounding to $700 imes 0.1$?

Answer: $70$. Round 738 to 700 and 0.09 to 0.1, then multiply to estimate the product.

Flashcard 12: What is $4{,}512 imes 19$ estimated by rounding to $4{,}500 imes 20$?

Answer: $90{,}000$. Round 4,512 to 4,500 and 19 to 20, then multiply to estimate the product.

Flashcard 13: What is $6{,}340 imes 78$ estimated by rounding to $6{,}000 imes 80$?

Answer: $480{,}000$. Round 6,340 to 6,000 and 78 to 80, then multiply to estimate the product.

Flashcard 14: What is $7{,}905 imes 302$ estimated by rounding to $8{,}000 imes 300$?

Answer: $2{,}400{,}000$. Round 7,905 to 8,000 and 302 to 300, then multiply to estimate the product.

Flashcard 15: What is $9{,}860 imes 0.047$ estimated by rounding to $10{,}000 imes 0.05$?

Answer: $500$. Round 9,860 to 10,000 and 0.047 to 0.05, then multiply to estimate the product.

Flashcard 16: What is $7{,}248 imes 0.0039$ estimated by rounding to $7{,}000 imes 0.004$?

Answer: $28$. Round 7,248 to 7,000 and 0.0039 to 0.004, then multiply to estimate the product.

Flashcard 17: What is $4{,}785 imes 0.51$ estimated by rounding to $4{,}800 imes 0.5$?

Answer: $2{,}400$. Round 4,785 to 4,800 and 0.51 to 0.5, then multiply to estimate the product.

Flashcard 18: What is $8{,}991 imes 1.98$ estimated by rounding to $9{,}000 imes 2$?

Answer: $18{,}000$. Round 8,991 to 9,000 and 1.98 to 2, then multiply to estimate the product.

Flashcard 19: What is $72{,}400 imes 0.006$ estimated by rounding to $70{,}000 imes 0.006$?

Answer: $420$. Round 72,400 to 70,000 (nearest ten thousand) and multiply by 0.006 to estimate the product.

Flashcard 20: What is $3{,}750 imes 0.08$ estimated by rounding to $4{,}000 imes 0.08$?

Answer: $320$. Round 3,750 to 4,000 (nearest thousand) and multiply by 0.08 to estimate the product.

Flashcard 21: What is $6{,}495 imes 0.099$ estimated by rounding to $6{,}500 imes 0.1$?

Answer: $650$. Round 6,495 to 6,500 and 0.099 to 0.1, then multiply to estimate the product.

Flashcard 22: What is the estimated value of $98{,}650$ rounded to the nearest ten thousand?

Answer: $100{,}000$. To round 98,650 to the nearest ten thousand, examine the thousands digit (8), which is 5 or greater, so increase the ten thousands digit from 9 to 10.

Flashcard 23: What is the estimated value of $4{,}782$ rounded to the nearest hundred?

Answer: $4{,}800$. To round 4,782 to the nearest hundred, examine the tens digit (8), which is 5 or greater, so increase the hundreds digit from 7 to 8.