Lesson 59: Adding Mixed Numbers — Practice Questions

1. 1. A group of students recorded the number of books they read in a month: {8, 15, 4, 11, 7, 13}. The range of the number of books read is ___.

2. 2. A basketball team scored the following points in five games: 105, 89, 94, 112, and 82. What is the range of their scores?

   • A. 30
   • B. 23
   • C. 7
   • D. 112

3. 3. The daily profit or loss of a cafe in dollars was recorded for six days: {12, -10, 8, 15, -2, -5}. The range of these amounts is ___ dollars.

4. 4. Which of the following best describes how to calculate the range of a data set?

   • A. Find the sum of all the numbers in the set.
   • B. Subtract the smallest number from the largest number.
   • C. Subtract the first number from the last number.
   • D. Find the middle number in the ordered list.

5. 5. The ages of several cousins at a reunion are 14, 8, 21, 12, 25, and 10. The range of their ages is ___ years.

6. 6. Calculate the sum: $3 \frac{1}{4} + 2 \frac{1}{3}$. Express your answer as a mixed number. ___

7. 7. A carpenter has two pieces of wood. One is $4 \frac{1}{5}$ feet long and the other is $2 \frac{1}{2}$ feet long. What is the total length of the two pieces combined?

   • A. $6 \frac{2}{7} \text{ feet}$
   • B. $6 \frac{7}{10} \text{ feet}$
   • C. $6 \frac{3}{5} \text{ feet}$
   • D. $8 \frac{7}{10} \text{ feet}$

8. 8. When adding $2 \frac{1}{4} + 3 \frac{5}{8}$, what is the first step needed to add the fraction parts, $\frac{1}{4}$ and $\frac{5}{8}$?

   • A. Add the numerators 1 and 5.
   • B. Add the denominators 4 and 8.
   • C. Find a common denominator for 4 and 8.
   • D. Add the whole numbers 2 and 3.

9. 9. A painter mixed $5 \frac{1}{6}$ gallons of white paint with $1 \frac{1}{4}$ gallons of blue paint. How many gallons of paint does she have in total? ___ gallons

10. 10. What is the sum of $7 \frac{2}{5}$ and $4 \frac{1}{3}$? Express your answer as a mixed number. ___