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

True

100

3.1 + 5.1 = 

8.2

100

20.8 - 7.3=

13.5

100

3.49

what is the place value of the 4?

tenths

200

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

False

200

14.7+15.1=

29.8

200

34.6 - 27.9=

6.7

200

1.356

What place value is the 1 on?

ones

300

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

False

300

3 + 4.5=

7.5

300

15.2- 0.4=

14.8

300

4.346

What place value is the 6 in?

thousandths 

400

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

True

400

17.82 + 3.66=

21.48

400

6 - 2.3=

3.7

400

123.53

What place value is the 2 in?

tens

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=

14.51

500

1124.9 - 567.80=

557.1

500

18294.372

What place value is 7 in?

Hundredths

600

258.069 + 0.54

258.609

600

45 - 2.159 

42.841

600

7,259.478

What place value is 8 in?

thousandths

700

79.249 + 871.03

950.279

700

56.834 - 6.9

49.934

700

0.050

What place value is 5 in?

Hundreths