Expressions
Estimating
Add/Sub/Mult/Div
Mental Math
Random
100
Use rounding: 455- 321=
What is 200
100
Estimate: Round to the nearest hundreds 617-385=
What is 300
100
132,534 + 389,145
What is 521,679
100
35 - m = 27
What is m = 8
100
Estimate: 487 x 36
What is 2,000
200
g divided 8 multiplied 2, for g = 40
What is 10
200
Round to the nearest thousands: 3,134 2,876 +2,945
What is 9,000
200
876,611 +454,686
What is 1,331,297
200
9 x 8 = c- 42
What is c = 114
200
Round 8,959 9,124 + 8,881
What is 27,000
300
126 divided by z, for z = 9
What is 14
300
Round to the nearest ten thousands. 56,987 -14,346
What is 43,000
300
4267 x 22
What is 93,874
300
35 divided by r = 7
What is r = 5
300
56 divided by g =8
What is g = 7
400
238 + f, for f=872
What is 1,110
400
Round to the nearest thousands and tens. 2,391 divided by 57 =
What is 40
400
487 x 36
What is 17,532
400
30 x 12 = 3g
What is g = 120
400
62 - h = 56
What is h =6
500
4 x 11 = j-63
What is 107
500
Round to the nearest hundreds and tens 863 x 48
What is 45,000
500
7,884 divided by 12
What is 657
500
0 x 24 = 6s
What is s = 0
500
6,570 divided by 15
What is 450
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