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Exponents
Multiplication 1-Digit
Estimating Products
Multiplication 2-Digit
Multiples of 10
100
10^5
10 x 10 x 10 x 10 x 10 = 100,000
100

Area Model:

3 x (24)

(3x20) + (3x4) 60 + 12=72

100
68 x 7
70 x 7 = 490
100
39 x 34
1,326
100

3 x 1,000

3,000

200
9^3
9 x 9 x 9 = 729
200
6 x (26)
(6 x 20) + (6 x 6) 120 + 36 = 156
200
33 x 6
30 x 6 = 180
200
69 x 14
966
200

4 x 102

400

300
4^4
4 x 4 x 4 x 4 = 256
300
7 x (23)
(7 x 20) + (7 x 3) 140 + 21 = 161
300
61 x 68
60 x 70 = 4,200
300
229 x 31
7,099
300

64 x 10,000

640,000

400
Estimating Products Problem: In one week, a campground rented 18 cabins at $225 each. ABOUT how much did they collect in rent together?
20 x $200 = $4,000
400
3 x (52)
(3 x 50) + (3 x 2) 150 + 6 = 156
400
79 x 56
80 x 60 = 4,800
400
Multiplication Problem: A delivery truck travels 278 miles each day. How far does it travel in 25 days?
278 x 25 = 6,950 miles
400
15 x 105

15,00,000

500
Exponent Problem: A single tusk that weighed just over 2^8 pounds from an African elephant is the largest tooth ever recorded from any modern animal. How many pounds did the tusk weigh?
2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 256 lb
500

Distributive Property Problem: Mr. Collins is buying 5 trains tickets for $36 each. What is the total cost of the tickets?

5 x 36 (5 x 30) + (5 x 6) 150 + 30 = 180

The total cost of the tickets is $180.

500
131 x 29
100 x 30 = 3,000
500

Multiplication Problem: Marshall's mother buys 2 boxes of granola bars each week. Each box contains 8 granola bars. If she continues buying 2 boxes each week, how many granola bars will she buy in a year (1 year = 52 weeks)?

8 x 2 = 16 x 52 = 832 or 52 x 2 = 104 x 8 = 832

500

(7x4) x 103

28,000