Adding & Subtracting Decimals

Representing Decimals

100

Write the decimal thirteen hundredths in standard form

What is 0.13

200

Write 6.5 in expanded form

What is (6 x 1) + (5 x 0.1)

300

Write 8.051 in word form

What is eight and fifty one thousandths

400

Write two and twenty-one thousandths in standard form

What is 2.021

500

Write one and nine hundredths in standard form and expanded form

What is 1.09 

            (1 x 1) + (9 x 0.01)

Comparing & OrderingDecimals

100

Use < , > or = to compare each pair of decimals 0.06 ______0.60

What is <

200

Use < , >, or = to compare the set of decimals 4.888_______4.880

What is >

300

Use <, >, or = to compare the set of decimals 2.03_____2.030

What is =

400

Order each set of decimals from greatest to least. 5.222, 5.202, 5.022, 5.2222

What is 5.2222, 5.222, 5.202, 5.022

500

Order each set of decimals from greatest to least. 0.04, 0.0404, 0.404, 0.0444

What is 0.404, 0.0444, 0.0404, 0.04

Rounding Decimals

100

Round the decimal to the given place-value. 5.031; hundredths

What is 5.03

200

Round the decimal to the given place-value. 0.42; tenths

What is 0.4

            0.40

300

Round the decimal to the given place-value. 27.35; tens

What is 30

400

Round the decimal to the given place-value. 3.4553; thousandths

What is 3.455

500

Round the decimal to the given place-value. 2.059; hundredths

What is 2.06

            2.060

Estimating Sums& Differences

100

Estimate. 38.23 + 11.84

What is 38 + 12 = 51

            40 + 10 = 50

200

Estimate. 75.38 + 22.04

What is 75 + 20 = 95

            75 + 22 = 97

300

Estimate 31.29 + 58.07

What is 30 + 60 = 90

            31 + 58 = 89

400

Estimate 12.045 + 11.81 + 12.3 + 11.56

What is 12. + 12. + 12. + 12. = 48

            10 + 10    + 10 + 10 = 40

500

Estimate. 6.45 + 5.88 + 5.61 + 6.03

What is 6 + 6 + 6 + 6 = 24

Adding and Subtracting Decimals

100

Add the decimals 43.28 + 31.45

What is 74.73

200

Add the decimals 0.724 + 6.458

What is 7.182

300

Add the Decimals 1.325 + 0.081

What is 1.406

400

Add the decimals 148.93 + 121.36

What is 270.29

500

Add the decimals 248 + 131.48

What is 379.48