Forms of Numbers
Estimation and Rounding
Adding and Subtracting Decimals
Multiplying and Dividing Decimals
Order of Operations
100
Write the number in standard form: two thousand twenty and twenty-five thousandths
What is 2,020.025
100
Round the number to the nearest tenth: 45.175
What is 45.2
100
3.89 + 15.3
What is 19.19
100
100 x 5.2
What is 520
100
16 ÷ (4 x 4)
What is 1
200
Write the number in standard form: one million, four hundred nine thousand, eight hundred thirty-five
What is 1,409,835
200
Round the number to the nearest hundredth: 152.0985
What is 152.10
200
53.7 + 28.6
What is 82.3
200
83.11 ÷ 1000
What is 0.08311
200
8 - 4 ÷ 2
What is 6
300
Write the following number in words: 623.7
What is six hundred twenty-three and seven tenths
300
Estimate the following problem. Also state which estimation strategy you used. 4.63 x 50.491
What is (Sample) 5 x 50 = 250 (Rounding or Compatible Numbers)
300
41.2 - 19.8
What is 21.4
300
9.063 x 24
What is 217.512
300
5 + (3.3 - 1.6)
What is 6.7
400
Write the following number in expanded form: 89.123
What is 80 + 9 + .1 + .02 + .003
400
Estimate the following problem. Also state which estimation strategy you used. 98.13 ÷ 24.27
What is (Sample) 100 ÷ 25 = 4 (Compatible Numbers)
400
4.6 - 2.07
What is 2.53
400
21.6 ÷ 0.06
What is 360
400
(9 - 1.2 x 3) ÷ 4
What is 1.35
500
Write the following number in expanded form: 2.086
What is 2 + .08 + .006
500
Estimate the following problem. Also state which estimation strategy you used. 4.38 + 2.74 + 1.17
What is (Sample) 4.38 2.74 +1.17 -------- Front end = 7; Back end = 1 Total = 8 (Front-end Estimation)
500
>, <, or = 6,869.583 + 1,504.222 ______ 8,373.8
What is > (8,373.805 > 8,373.8)
500
17 ÷ 180
What is _ 0.094 (Just the 4 repeats)
500
4.7 - 2.3 + 2.01 ÷ 2 x 2
What is 4.41
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