Multiples of Ten
Rounding to Estimate
Partial Products
Regrouping
Multiplying 3-Digit by 1-Digit Numbers
100
6 x 50
What is 300?
100
Round 39 x 5 to estimate the product.
What is 200?
100
24 x 5 = (Include partial products and final product)
What is 20 + 100 = 120?
100
28 x 3 =
What is 84?
100
148 x 5 =
What is 740?
200
2 x 80
What is 160?
200
Round 117 x 4 to estimate the product.
What is 400?
200
34 x 2 = (Include partial products and final product)
What is 8 + 60 = 68?
200
46 x 8 =
What is 368?
200
239 x 4 =
What is 956?
300
200 x 6
What is 1,200?
300
Round 3 x 287 to estimate the product.
What is 900?
300
18 x 3 = (Include partial products and final product)
What is 24 + 30 = 54?
300
87 x 7 =
What is 609?
300
5 x 412 =
What is 2,060?
400
900 x 4
What is 3,600?
400
Round 719 x 5 to estimate the product.
What is 3,500?
400
Tell the multiplication problem that goes with these partial products and final product. 6 + 120 = 126
What is 42 x 3 = 126?
400
There are 22 t-shirts that say, "Because I said so" in one box. Mrs. Clark ordered 9 boxes for the teachers. How many t-shirts did she order? All work must be shown on your board.
What is 198 t-shirts?
400
If a bear weighs 836 pounds, and a moose weighs three times as much, how much does the moose weigh? All work must be shown on your board. Label your answer!
What is 2,508 pounds?
500
3 x 5,000
What is 15,000?
500
Round 6 x 688 to estimate the product.
What is 4,200?
500
Tell the multiplication problem that goes with these partial products and final product. 8 + 280 = 288
What is 72 x 4 = 288?
500
Skinner West has 3 floors. If the Willis Tower has 39 times as many floors, how many stories tall is it? All work must be shown on your board.
What is 117 stories/floors?
500
Mr. Lomax bought 7 Chromebooks for $199.00 each. How much money did he spend? All work must be shown on your board. Label your answer!
What is $1,393.00?