Multiplying by 10s with Exponents
Number Forms
Rounding Decimals
Estimating Sums
& Differences
Adding and Subtracting Decimals
100

3.452 x 10 = ?

What is 34.52?

100
Write the decimal thirteen hundredths in standard form
What is 0.13
100
Round the decimal to the given place-value. 5.031; hundredths
What is 5.03
100
Estimate using rounding. 38.23 + 11.84
What is 38 + 12 = 51
100
Add the decimals 43.28 + 31.45
What is 74.73
200

345 / 100 = ?

What is 3.45?

200
Write six and five tenths in expanded form
What is (6x1) + (5x0.1)
200

Round the decimal to the given place-value. 0.0420; thousandths

What is 0.042?

200
Estimate using Rounding. 75.38 + 22.04
What is 75. + 22 = 97
200
Add the decimals 0.724 + 6.458
What is 7.182
300

7.2 / 102 = ?

What is 0.072?

300
Write 8.051 in word form
What is eight and fifty one thousandths
300
Round the decimal to the given place-value. 27.35; tens
What is 27
300
Estimate using Front-End Estimation 31.29 + 58.07
What is 31. + 58 = 89
300
Add the Decimals 1.325 + 0.081
What is 1.406
400

39 x 104 = ?

What is 390,000?

400
Write two and twenty-one thousandths in standard form
What is 2.021
400
Round the decimal to the given place-value. 3.4553; thousandths
What is 3.455
400
Estimate using clustering 12.045 + 11.81 + 12.3 + 11.56
What is 12. + 12. + 12. + 12. = 48
400
Subtract the decimals 148.93 - 121.36
What is 27.57
500

A manufacturer made 7,234 boxes of coffee stirrers. Each box contains 1,000 stirrers. How many stirrers did they make?

What is 7,234,000?

500
Write one and nine hundredths in standard form and expanded form
What is 1.09 and (1x1) + (0x0.1) + (9x0.01)
500
Round the decimal to the given place-value. 2.059; hundredths
What is 2.06
500
Estimate using clustering. 6.45 + 5.88 + 5.61 + 6.03
What is 6 + 6 + 6 + 6 = 24
500
Subtract the decimals 248 - 131.48
What is 116.72
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