Multiplying
Estimates with Whole Numbers
Estimates with Decimals
Where does that Decimal Go?
Powers of 10
100
218 X 34
What is 7,412
100
Estimate 8 x 43
What is 320
100
Estimate 7.3 x 8.987
What is 63
100
34.8 X 4
139.2
100
10 to the third power
1,000
200
78 x 48
What is 3,744
200
Estimate 5,762 x 69
What is 420,000
200
Estimate 6.764 x 18.3
What is 140
200
$21.00 x 5
What is $105.00
200
0.276 x 10 squared
27.6
300
Two numbers that end in zeroes that would equal 42,000
What is 600, 70 or 700,60 or 4200,10 or 420,100
300
Estimate 68 x 91
What is 6,300
300
Estimate 267.76 x 14.3
What is 3,000.
300
4.51 x 18.7
What is 84.337?
300
Which is greater: 3 raised to the 4th power or 4 raised to the third power?
4 raised to the third power
400
587 x 409
What is 240,083
400
Estimate 902 x 32
What is 27,000
400
Estimate 249.31 x 434.2
What is 80,000.
400
6.741 x 89
What is 599.949
400
Convert each number into standard form. Then, find the sum. 7 raised to the 3rd power PLUS 9 raised to the 4th power.
7 raised to the 3rd power = 343 9 raised to the 4th power = 6,561 Sum= 6,904
500
5,412 x 3,988
What is 21,583,056
500
Estimate 785 x 901
What is 720,000
500
Estimate 278.34 x 667
What is 200,000
500
642 x 1.6
What is 1,027.2
500
Convert into standard form: 65.8 X 10 raised to the 5th power. 12 squared Now, add the two products
65.8 X 10 raised to the negative 5th power= 6,580,000 12.546 raised to the positive 2nd power = 144 Add: 6,580,144
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