Name:    Lesson 8: Subtracting Decimals by Renaming

1.

Carmen subtracted 0.384 from 2 by renaming 2 as 1.994 + 0.006. Use this to calculate 2 - 0.384.
 a. 1.716 b. 1.71 c. 1.616 d. 1.61

2.

Calculate 15 - 11.89 by renaming 15 as 14.89 + 0.11.
 a. 3.89 b. 2.11 c. 4.11 d. 3.11

3.

How would you rename 5 to calculate 5 - 3.192?
 a. 4.992 + 0.008 b. 4.998 + 0.002 c. 4.999 + 0.001 d. 4.991 + 0.009

4.

How would you rename 20 to calculate 20 - 4.85?
 a. 19.15 + 0.85 b. 19.85 + 0.15 c. 14.15 + 0.85 d. 14.85 + 0.15

5.

Ryan subtracted 4.78 from 10 by renaming 10 as 9.78 + 0.22. Use this to calculate 10 - 4.78.
 a. 4.22 b. 5.22 c. 6.22 d. 5.78

6.

How would you use Ryan’s method from question 5 to rename 100 to calculate 100 - 7.48?
 a. 100 + 0.42 b. 98 + 0.25 c. 99.48 + 0.52 d. 100 + 0.24

7.

Matt is hiking a 20 km trail. He stops at Station A to rest and to have a snack.

How much farther does Matt have to hike to complete the trail?
 a. 13.121 km b. 13.112 km c. 13.122 km d. 13.211 km

8.

How far is Station B from the end of the trail?
 a. 5.633 km b. 6.363 km c. 16.336 km d. 16.636 km

9.