Practice Test 6 - 4th Grade Math

18 of the 20 questions below are in this test; the other 2 can't be scored yet. Answer them in any order, then submit to see your score and every explanation.

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1. The pizza diagram shows slices that represent unit fractions. Marcus ate some slices. Based on what the diagram shows, which statement correctly describes how much pizza Marcus ate?
2. Maya has $\frac{7}{10}$ of a pizza and her brother has $\frac{25}{100}$ of the same size pizza. If they combine their pizza pieces, what fraction of a whole pizza will they have together?
3. Which statement correctly describes the measure of an angle in degrees?
4. Based on the line plot of student jump distances, how many students jumped farther than $1\frac{1}{4}$ feet but not more than $1\frac{3}{4}$ feet?
5. A scientist observes 94 bacteria in a sample. The bacteria multiply by 10 each hour for 3 hours, then a treatment reduces the population to 1/1000 of that amount. How many bacteria remain?
6. A bakery packages cookies in boxes of 12. They made 156 cookies today. To find how many full boxes they can make, they need to divide. What two related facts can help them check if $156 ÷ 12 = 13$ is correct?
7. Lily is making trail mix. She uses $\frac{3}{8}$ cup of nuts, $2$ copies of $\frac{1}{8}$ cup of dried fruit, and $1$ copy of $\frac{1}{4}$ cup of granola. How many cups of trail mix does she make in total?
8. Each small pizza slice is $\tfrac{1}{4}$ of a pizza. Marcus eats 7 slices. How much pizza did he eat in all?
9. Look at the protractor measurement shown in the figure. The angle is formed by the two rays from point A. If you wanted to create an angle that measures exactly twice as much as this angle, how many degrees would that new angle measure?
10. Examine the figure. This shape can be divided into rectangles. What is the total area?
11. When using a protractor to measure the angle in the figure, which statement best describes the correct measurement process?
12. Convert $\frac{6}{10}$ to hundredths and add $\frac{9}{100}$. Show the common denominator 100: $\frac{6}{10}=\frac{60}{100}$, so $\frac{60}{100}+\frac{9}{100}=\frac{69}{100}$. What is the sum?
13. Look at the composite figure made of rectangles shown. Find the area of the entire figure.
14. The diagram shows a rectangular garden bed with a square section removed for a fountain. What is the remaining area that can be planted?
15. Emma ran 27 laps, which is 3 times as many laps as Marcus ran. How many laps did Marcus run?
16. Is the classmate's reasoning correct?
17. Multiply the numerator and denominator of $\frac{2}{3}$ by $2$. What is the equivalent fraction?​
18. Find the sum: $3,895 + 7,468$​
19. Students measured their hand spans in inches. According to the line plot shown, what fraction of students had hand spans of $5\frac{3}{4}$ inches or greater?
20. Which reason best explains why fixed expenses are easier to plan for than variable expenses?

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