Practice Test 9 - 4th Grade Math

17 of the 20 questions below are in this test; the other 3 can't be scored yet. Answer them in any order, then submit to see your score and every explanation.

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1. Emma is measuring a rectangular classroom floor. The area is 96 square feet, and the length is 12 feet. The area formula is $A = L \times W$. What is the width of the classroom?
2. Keisha measured two ribbons with the same ruler. One ribbon is $0.71$ meters long and the other is $0.17$ meters long. Which ribbon is longer?
3. Which fraction is NOT equivalent to $0.4$?
4. Chen had $\tfrac{7}{10}$ of a pie left. He ate $\tfrac{3}{10}$ of the same pie. What fraction of the pie is left?
5. David writes three numbers in order from least to greatest: $0.2$, $\frac{15}{100}$, and $\frac{3}{10}$. Did David order these numbers correctly?
6. Which choice correctly identifies two basic roles a bank plays for its customers?
7. Maya wrote "seven hundred thirty-six thousand, nineteen." What is this number in standard form?
8. The figure shows a patio made of rectangular sections. Calculate the total area of the patio using the given measurements.
9. A 75° angle turns through how many one-degree angles?
10. Chen wants to break apart $\frac{6}{8}$ into a sum of fractions with denominator 8. Choose the option that shows two different correct decompositions.
11. Maya ate $\frac{2}{8}$ of a pizza, then she ate $\frac{3}{8}$ more of the same pizza. What fraction of the pizza did Maya eat in all?
12. A library has $84$ books on a shelf. The librarian wants to arrange books so that this shelf has $1,000$ times as many books as a smaller shelf. If the smaller shelf currently has $12$ books, how many more books need to be added to the large shelf?
13. A bottle holds 2 L of water. How many milliliters is 2 L?
14. A bag has 3 kg of rice and another has 450 g. What is the total mass in grams?
15. A triangle has sides measuring 5 inches, 12 inches, and 13 inches. To classify this triangle by its angles, what should you determine first?
16. The rectangular grid represents a whole. Some squares are shaded to show a fraction. Which statement correctly expresses this fraction as a multiple of a unit fraction?
17. Lily wants to estimate $47 \times 83$ and considers three strategies: (1) $50 \times 80$, (2) $50 \times 83$, and (3) $47 \times 80$. Without calculating the exact answer, which strategy would likely give the most accurate estimate?
18. The figure shows a garden bed. Sarah needs to find how much mulch to buy to cover the entire area. Based on the dimensions shown, how many square feet of mulch does she need?
19. A storage container is 5 feet long, 4 feet wide, and 3 feet tall. How many cubic feet of space does it contain?
20. $\frac{2}{5}=?/10$. What number goes in the blank?

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