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Mental Math
Estimating
2-digit mult.
1-digit mult.
Exponents
100
40 x 20
What is 800
100
48 x 29
What is 1,500
100
17 x 47
What is 799
100
64 x 4
What is 256
100
5 squared in standard form
What is 25
200
700 x 30
What is 21,000
200
608 x 52
What is 30,000
200
46 x 34
What is 1,564
200
153 x 7
What is 1,071
200
7 x 7 x 7 x 7 x 7 in exponential notation
What is 7 to the 5th power
300
300 x 300
What is 90,000
300
207 x 92
What is 18,000 or 20,000
300
349 x 32
What is 11,168
300
789 x 3
What is 2,367
300
4 to the 5th power in expanded form
What is 4 x 4 x 4 x 4 x 4
400
20 x 50 x 7
What is 7,000
400
72 x 11
What is 700
400
555 x 44
What is 24,420
400
1234 x 5
What is 6,170
400
7 to the 3rd power in standard form
What is 343
500
400 x 800 x 10
What is 3,200,000
500
48 x 19 x 59
What is 60,000
500
917 x 56
What is 51,352
500
2222 x 6
What is 13,332
500
8 cubed in expanded form
What is 8 x 8 x 8