Name
A-Z
Vocabulary
• benchmark fractions • mixed number
Choose the best term from the box.
Write it on the blank.
• equivalent fractions
• multiple
• factor
1. To estimate the sum of two or
more fractions, replace the addends with
.
by multiplying both the numerator
2. You can find
and the denominator of a fraction by the same nonzero number.
of a number is a product of the number and any nonzero
3. A
whole number.
Multiply and Divide
Find each product or quotient.
4. 108 × 2
5. 270 , 30
6. 243 × 20
7. 288 , 24
8. 456 × 11
9. 432 , 24
Fraction Sums and Differences
Find each answer.
10. 59 + 89
11. 223 + 512
2
12. 11
12 - 3
7 - 23
13. 610
5
14. At the library, Herb spent 16 hour looking for a book, 14 hour
reading, and 12 hour doing research on the computer. How many
hours did Herb spend at the library?
Common Denominators
15. Explain how you can find a common denominator for 35 and 58 .
456
Topic 8 Review What You Know
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