7th Grade Decimals: Ordering, Rounding, Operations

Decimals & Expanded Form

100

Write the number corresponding to:

4x10 + 1x1 + 6x0.1

41.6

200

Write the number corresponding to:

5x1 + 4x0.1 + 8x0.01

5.48

300

Write the number corresponding to:

6x10 + 3x(0.1) + 1x(0.01) + 5x(0.001)

60.315

400

Write the number corresponding to:

8x10 + 8x0.001

80.008

500

Write the number corresponding to:

3x100 + 1x(0.01) + 4x(1/0.001)

300.014

Compare & Order Decimals

100

Compare decimals: (<,>)

13.3     13.9

13.9   >  13.3

200

Compare decimals: (<,>)

6.8        6.802

6.8   <   6.802

300

Order from the smallest to the largest:

6.80, 6.08, 6.808

6.08, 6.808, 6.80

400

Order from the largest to the smallest:

45, 4.405, 4.5

45, 4.5, 4.405

500

Compare decimals: (<,>)

254 608.703        254 609.933

254 608.703     <   254 609.933

Round Decimals

100

Round to nearest whole number:

$1,792.29

$1,792

200

Round to 1 decimal place:

91.194

91.2

300

Round to 2 decimal places:

49.028

49.03

400

Round to 3 decimal places:

0.84759

0.848

500

Round to 2 decimal places

0.997

1.00

Add and Subtract Decimals

100

Solve:

43.23 + 31.45

74.68

200

Solve:

1.325 + 0.081

1.406

300

Solve:

148.93 - 121.36

27.57

400

Solve:

248 - 131.48

116.72

500

Emily buys boots for $39.99 and sneakers for $29.99. If Emily pays using a $100 gift card, what is her remaining balance?

30.02

Multiply Decimals

100

Solve:

1.2 x 3

3.6

200

0.14 x 2

0.28

300

Solve:

2.45 x 8

19.6

400

Solve:

1.147 x 6

6.882

500

Solve:

34.67 x 23

797.41