Practice Test 9 - 3rd Grade Math

19 of the 20 questions below are in this test; the other one can't be scored yet. Answer them in any order, then submit to see your score and every explanation.

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1. A gardener has 35 seeds and plants 7 seeds in each pot. How many pots does the gardener use?
2. Maya has 5 boxes with 8 crayons in each box. How many crayons are there in all?
3. Study the ruler and objects shown in the figure. Which object shows the correct way to measure length?
4. The figure shows a rectangle with some unit squares shaded. Jake says he can find the area of the shaded region by using the equation $2 \times 4 = 8$. Based on the figure, is Jake correct?
5. Look at the fraction strips shown. Which statement about the shaded parts is true?
6. Keisha has 6 kg of rice. She keeps none for herself and divides all of it equally between 2 friends. How many kilograms does each friend get?
7. On grid paper, one small square is 1 cm by 1 cm. What is its area?
8. A rectangular dog pen is 10 feet long and 6 feet wide. What is the area?
9. Using the thermometer display, determine how many degrees the temperature would need to change to reach exactly 45°C.
10. On a 0–1 number line divided into 3 equal parts, where is $\tfrac{1}{3}$ located?
11. Chen's canvas is 9 inches long and 6 inches wide. Find the area.
12. Look at the number line. Point A is at $\frac{2}{3}$ and point B is at $\frac{5}{6}$. How many sixths are between point A and point B?
13. Mrs. Chen asks her students to find three different fractions that all equal $3$. Tommy writes $\frac{3}{1}$, $\frac{6}{2}$, and $\frac{9}{3}$. Sarah writes $\frac{12}{4}$, $\frac{15}{5}$, and $\frac{18}{6}$. Who wrote three correct fractions?
14. Sofia's poster board is 4 feet long and 3 feet wide. What is the area?
15. A pizza is cut into $3$ equal slices. Mrs. Lee buys $2$ whole pizzas cut this way. Which fraction shows the total number of thirds she has?
16. Which equation shows the commutative property (order doesn't change the product)?
17. Jake writes a 5-digit number where the hundreds digit is 3 more than the tens digit, and the tens digit is 4. If the number is 62,143, what is the value of the hundreds place?
18. A shelf has 42 books in 6 equal rows. How many per row? ($42 \div 6$)​
19. A tray has 56 strawberries in 8 equal bowls. How many strawberries are in each bowl?
20. Chen's dog has a mass of 12 kg and his cat is 4 kg. How much more mass does the dog have?

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