1. Unit 0: Review
Decimals and Fractions

3. Adding Decimals Rule: 3 6.203 .032 + 0.34 + ______ _______
When adding decimals, be sure to line up your place values. **You can't add tenths with hundreds** 3
6.203 +
0.34
______
.032 +
_______

4. 4.9 21 +
_____
_____ +
2.4
0.04
_____ +
1.2
0.2 1 +
__________
.03 + 2
______

5. Subtracting Decimals Rule: 3 6.203 - 0.34 ______ - .032 _______
When subtracting decimals, be sure to line up your place values. **You can't subtract tenths with hundreds** 3
6.203 -
0.34
______ -
.032
_______

6. 2.3 4
9.4 - -
.004
.03
_____
_____ - 5
____

7. Multiplying Decimals Rule: 3.2 1.1 X 2.2 9 ______ _____ *
When multiplying decimals, simply count how many decimal places were used and apply them to answer.
**Don't forget your placeholder zeros when necessary**
3.2
1.1 X
2.2 9
______
_____ *

8. 100 .1 x
____ 32
.02 x
____
1.2
0.4 x
____
5.5 11 x
____

9. Dividing Decimals Rule: 2 2.4 0.3 2.4
When dividing with decimals, move your decimal point up directly from the Dividend to the Quotient.
**If the Divisor is not a whole number, move the decimal over until it is. Move the decimal in the Dividend the same number of times.**
Rule: 2
2.4
0.3
2.4

10. .2
2.88 4
1.6
.24
4.8
.002
.204

11. - Adding
- Subtracting
- Multiplying
- Dividing
REVIEW:
HW:
Adding, Subtracting, Multiplying, and Dividing Decimals Worksheet

12. 3.4
+ 2.1
____
0.6
+ 21
____ 34
+ 3.1
____
4.6
_______
10.4
+ 2.1
______

13. 34
- 3.1
____
12.1
____ 2
____
2.3
______

14. 14
x 2.1
____ 4
x 0.1
____
0.12
x 0.1
____

15. .2
2.88 3
3.3
1.4
0.42