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

True

100

43.14 + 5.12 = 

48.26

100

20.8 - 7.34=

13.46

100

What number is in the hundredths place?

45.67

7

200

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

Ex: 6.8 and 1.3754

 False, only if the number is larger in value!

200

114.73 + 68.1=

182.83

200

34.63 - 27.9=

6.73

200

What number is in the ones place?

23.09

3

300

Adding and subtracting decimals is the same as adding and subtracting any numbers, except you bring down the decimal point. 

 It's actually true! Phew!

300

0.79 + 0.45 =

1.24

300

15- 0.48=

14.52

300

What number is in the tenths place?

9.12

1

400

When adding and subtracting decimals, you should line up the decimal points.

True

400

17.82 + 3.66 =

21.48

400

87.4 - 38.821 =

 48.579

400

What number is in the tens place?

76.9

 7

500

When adding and subtracting decimals, the decimal point doesn't matter.

False

500

111.7 + 102.81 =

214.51

500

105.65 - 62.33 =

43.32

500

When you read a number with a decimal, what do you say when you see the decimal?

AND

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