2. Main Idea and New Vocabulary NGSSS Example 1: Use Mental Math
Example 3: Use Division
Example 4: Use Division
Example 5: Write Fractions as Repeating Decimals
Example 6: Real-World Example
Five-Minute Check
Lesson Menu

3. Write fractions as terminating or repeating decimals and write decimals as fractions.
terminating decimal
repeating decimal
bar notation
Main Idea/Vocabulary

4. MA.7.A.5.1 Express rational numbers as terminating or repeating decimals.
NGSSS

5. Use Mental Math
Write as a decimal.
Think
× 10
Answer:
Example 1

6. 1 Write as a decimal. 5 A. 0.20 B. 0.25 C. 0.40 D. 1.20 __
Example 1 CYP

7. Use Mental Math 3 Write 7 as a decimal. 5 = 7 + 0.60 You know that__ 3 5
= You know that
= 7.60 Add mentally.
Answer:
Example 2

8. 2 Write 1 as a decimal. 10 A. 2.1 B. 2.0 C. 1.2 D. 0.2 __
Example 2 CYP

9. Use Division Write as a decimal. 1 8 . 1 2 5 Divide 1 by 8. – 8 20__ 1 8 . 1 2 5
Divide 1 by 8.
– 8 20
– 16 40
– 40
Answer:
Example 3

10. Write as a decimal. __ 3 5
A. 6
B. 1.6
C. 0.6
D. 0.06
Example 3 CYP

11. Use Division 1 Write – as a decimal. 25 –0.04 Divide 1 by –25. – 1 00__ 1 25
–0.04
Divide 1 by –25.
– 1 00
Answer:
Example 4

12. 3 Write – as a decimal. 8 A. –0.5 B. –0.375 C. –2.6 D. 0.375 __
Example 4 CYP

13. Write Fractions as Repeating Decimals
Write as a decimal. . 9 9
Divide 1 by 11.
– 99 10
– 0
100
– 99 10
– 0 10
Example 5

14. Write Fractions as Repeating Decimals
Answer:
Example 5

15. Write as a decimal. A.
B. 0.3
C. 1.3 D.
Example 5 CYP

16. The final digit, 2, is in the hundredths place.
CEREAL Jorge read that 0.72 of his favorite cereal was whole-grain wheat. Find what fraction of his cereal is whole-grain wheat. Write in simplest form.
The final digit, 2, is in the hundredths place.
Simplify.
Answer: So, of the cereal is whole-grain wheat.
Example 6

17. LOTION Julianne’s lotion bottle indicated that 0
LOTION Julianne’s lotion bottle indicated that 0.26 of the lotion is aloe vera. Find what fraction of the lotion is aloe vera. Write in simplest form. A. B. C. D.
Example 6 CYP

18. Write as a decimal. Use bar notation if the decimal is a repeating decimal.
Five Minute Check 1

19. Write as a decimal. Use bar notation if the decimal is a repeating decimal.
Five Minute Check 2

20. Write as a decimal. Use bar notation if the decimal is a repeating decimal.
Five Minute Check 3

21. Write 1.2 as a mixed number in simplest form.C. D.
Five Minute Check 4

22. Write 0.15 as a fraction in simplest form.
B. 1 C. D.
Five Minute Check 5

23. Write 2.65 as a fraction in simplest form.
B. 2
C. 2
D. 2
Five Minute Check 6