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Decimal Place Value
Estimating Sums
Estimate the difference
Adding Decimals
Subtracting Decimals
100
Write 3/100 as a decimal
What is 0.03
100
Estimate the sum

25.4 + 19.6

What is 45

100

Estimate the difference

24.9 - 9.6 =

What is 15

100
92.30 + 0.32
What is 92.62
100
7.89 - 4.29
What is 3.6
200
Write 0.9 as a fraction
What is 9/10
200

Estimate the sum

32.8  + 14.2

What is 47

200

Estimate the difference

67.53 - 13.87=

What is 54

200
In December the snowfall was 0.03 in. and in January it was 2.1 in. What is the total amount of snowfall?
What is 2.13 in.
200
True or False. 85.22 - 12.619 = 20.817
What is False 21.871
300
What is 7.7 as a fraction
What is 7 7/10
300

Estimate the sum

198.46 + 29.7

What is 230

300

Estimate the difference

448.33 -215.98 =

What is 200 or 230

300
9.1 + 7.21
What is 16.31
300
The pyramid of Khafe measured 143.5 meters high. The pyramid of Menkaure measured 65.5 meters high. What us the difference in the heights of these two pyramids?
What is 78 meters
400
241.135 What is the place value of the 3?
What is tenths
400

Estimate the sum 

462.31 + 631.99

What is 1100 or 1092

400

Estimate the Difference

876.53 - 410.65 =

What is 500 or 470

400
14.005 + 135.1 + 3009.124
What is 3158.229
400
Sue subtracted 2.9 from 20.9 and got 0.81. Explain why this is not correct. What did Sue do wrong?
What is Sue lined up the numbers and not the decimal. The correct answer is 18.
500
What is the place value of of the 7? 436.967
What is the thousandths
500

Estimate the sum

489.22 + 735.21 + 850.31=

What is 2100 or 2080

500

Estimate the Difference

764.88 - 254.11 =

What is 500 or 510

500
146.882 + (963.258 -147.852)
What is 962.288
500
Miami's annual precipitation in 2000 was 61.05 in. Albany's was 46.92 in. How much greater was Miami's precipitation than Albany's?
What is 14.13 in.