True/False
Adding Decimals
Subtracting Decimals
Adding and Subtracting Decimals
Vocabulary
100
When adding and subtracting decimals, you always include the decimals.

True

100

3.14 + 5.12 = 

What is 8.26?

100

20.8 - 7.34=

What is 13.46?

100

12.46 + 3.8=

16.26

100

What does "sum" mean?

The answer to an addition problem. 

200

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

False

200

14.73+15.1=

What is 29.83?
200

34.63 - 27.9=

What is 6.73?

200

4.5 - 3.79=

What is 0.71?

200

When you see "difference" in a word problem, what operation should you do?When you see "difference," what math operation should you do?

subtract or subtraction

300

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

False

300

3 + 4.55=

What is 7.55?

300

150- 0.48=

What is 149.52?

300

79.38 - 9.19=

What is 70.19?

300

When you see "how many more" in a word problem, what operation should you do"

subtract or subtraction

400

When adding and subtracting decimals you put the bigger number on top.

True

400

17.82 + 3.66=

What is 21.48?

400

6 - 2.33=

What is 3.67?

400

12.13 + .9=

What is 13.03?

400

When you see "in all" in a word problem, what math operation should you do?

add or addition

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

11.7 + 2.81=

What is 14.51?

500

1124.09 - 567.87=

What is 556.22?

500

10.21 - 5.6=

What is 4.61?

500
When you see "total" in a word problem, what operation should you do?

add or addition

M
e
n
u