Powers and Exponents
Estimate/ Rounding Numbers
Area Models
Partial Products
Multi-digit times a 1 digit number
100
What is the multiplication expression for the exponential form?


104

10 x 10 x 10 x 10

100
What number does 187 round to? (nearest hundreds)

200

100

Use an Area model to solve this equation.

154 x 36

5,544

100

Use partial products to solve this equation.

142 x 63

8,946

100

32 x 3

96

200

What is the exponential form for 10 x 10 x 10?

103

200

What does 37 round to?

40
200

Use an Area model to solve this equation.

132 x 28

3,696

200

325 x 73

23,725

200

64 x 5

320

300

What is the exponential form of the power of 100?

102

300

Round both numbers.

643 x 18

600 x 20

300

Use an Area model to solve this equation.


33 x 78

2,574

300

104 x 28

2,912

300

327 x 6

1,962

400

33 x 103 = ?

33,000

400

Round both numbers.

572 x 49

600 x 50

400

Use an Area model to solve this equation.

72 x 225

16,200

400

Use partial products to solve this equation.

36 x 93

3,348

400

188 x 7

1,316

500

24 x 1,000 =?

24,000

500

Round both numbers.

478 x 38

500 x 40
500

Use an Area model to solve this equation.

416 x 63

26,208

500

Use partial products to solve this equation.

222 x 58

12,876

500

5,246 x 3 

15,738

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