Decimals
Rounding Decimals
Addition Properties
Adding
Decimals
Subtracting Decimals
100

Write in number form.
Twenty-four hundredths

0.24

100

Round 8.17 to nearest tenth

8.2

100

Identify the property that is used to find the sum.

60 + 13 + 40 = 60 + 40 + 13

Commutative Property 

100

2.4 + 3.4 = 

5.8

100

5.8 - 4.2 = 

1.6

200

What place is the 1 in?

Hundredths

200

Round 1.8 to nearest whole number

2

200

Identify the property that is used to find the sum.
26 + 37 + 53 = 26 + (37 + 53)

Associative Property

200

7.82 + 9.35 = 

17.17

200

9.67 - 4.47= 

5.20

300

Compare using <, >, or =.
0.72 ______ 0.45

0.72 > 0.45

300

Round 110.079 to nearest hundredth

110.08

300

Identify the properties that are used to find each sum.

A) 10.9 + 3 + 0.1 = 3 + 10.9 + 0.1

B) 3 + (10.9 + 0.1)

A) Commutative Property

B) Associative Property

300

8.5 + 3.02 = 

11.52

300

8.03 - 6.12 =

1.91

400

Write in word form:
135.045

One hundred thirty-five and forty-five thousandths

400

Round each decimal to the nearest ten. Then add.
23.78 + 10.45

20 + 10 = 30

400

Identify the properties that are used to find each sum.
A) 12.5 + 0 + 1 + 43.5 = 1 + 12.5 + 43.5 + 0

B) = 1 + (12.5 + 43.5) + 0

C)= 57 + 0 = 57

A) Commutative Property

B) Associative Property

C) Identity Property

400

12.8 + 1.47 =

 14.27

400

13.5 - 2.47 = 

11.03

500

How many hundredths are there?

178.35

5 hundredths

500

Round each decimal to the nearest one. Then, add.
75.56 + 82.49

76 + 82 = 158

500

Identify the properties that are used to find each sum.

A) 1.8 + 2.6 + 0 = (1 + 0.8) + (2 + 06) + 0

B) = 1 + 2 + 0.8 + 0.6 + 0

C) = (1 + 2) + (0.8 + 0.6) + 0

A) Distributive Property

B) Commutative Property

C) Associative Property

500

574.3 + 2.951 =

577.251

500

52.11 - 4.378 =

47.732