Mental Math
Powers of 10
Find the Product
Guess Your Luck
100

40+ 560 =

600

100

ten to the third power

1,000

100

73 x 3

210 + 9= 219

100

spell X

multiplication

200

1,000+400+60+12=

1,472

200

ten to the sixth power

1,000,000

200

(12x3) x 10 to the second power

3,600

200

box method is also known as the 

area model

300

(17 x 10 to the fourth power)= 

170,000

300
ten to the third power multiplied by 97

97,000

300

10 to the third power x _______ = 160,000

160

300

What is the formula for volume?

l x w x h

400

14 + ____ + 0 = 20

6

400

10, 000, 000

ten to the 7th power

400

600 x 21 = 

12,000 + 600 = 12,600

400

true or false:

Area x h = volume

true

500

72 x 2 = 

144

500

true or false

10x10x10x10x10x10= 10 to the seventh power

false

500

explain the relationship between a 10 and its exponent

indicates the number of zeros

500

find the missing width

l= 4

h = 3

w = ____

V = 36

3