Show:
True/False
Adding Decimals
Subtracting Decimals
Addition/ Subtraction
Check your work
100
When adding and subtracting decimals, you always include the decimals.

True

100

3.1 + 5.45 = 

What is 8.55?

100

20.8 - 7.3=

What is 13.5?

100

12.4 - 3.8=


8.6

100

5.10-3.56

1.56

200

When adding and subtracting decimals, you always put the longer number on top.

False

200

14.73+15.14=

What is 29.87?

200

34.6 - 27.9=

What is 6.7?

200

4.5 - 3.7=


0.8

200

79.38 - 9.19=

What is 70.19?

300

When adding and subtracting decimals, you ignore the decimal points.

False

300

3 + 4.54=

What is 7.54?

300

15.2- 0.4=

What is 14.8?

300

3.45+9.6

13.05

300

9.00-4.50

4.50

400

When adding and subtracting decimals you ALWAYS line up the decimal.

True

400

17.82 + 3.66=

What is 21.48?

400

6 - 2.3=

What is 3.7?

400

12.1 - 0.9=


What is 11.2?

400

10.21 - 5.6=

What is 4.61?

500

When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put that in your answer.

False! 

500

11.76 + 2.81=

What is 14.57?

500

1124.9 - 567.80=

What is 557.1?

500

36.456+3.285


39.741

500

95.2-68.67

26.53