Multipilying
13 X 21
273
Estimate 13 X 25
300
What are the partial products of 12 x 18
100, 80, 20, 16
What is the answer to a multiplication problem called?
product
The fourth-grade students at Skyline Elementary sold candles to raise money. Each candle costs $8. On Monday they sold 10 candles. On Tuesday and Wednesday, they sold 15 candles. How much money have they raised so far?
$248
24 X 62
1,488
Estimate 37 X 43
800
What are the partial products of 22 X 23
400, 60, 40, 6
What are the numbers called used to multiply?
factors
Sally had $360 to spend on Christmas presents. She bought a toy for each of her brothers, costing $27 each. She also bought a doll for her sister that cost $20. If Sally has 3 brothers, how much money will she have left to spend?
$259
38 X 73
2,774
Estimate 42 X 78
3,200
What are the partial products of 31 X 26
600, 180, 20, 6
What property shows us that the product stays the same if the factors don't change?
commutative property
Ms. Richards planted some trees and bushes in her yard. Each tree costs $38 and each bush costs $22. If she plants 5 trees and 2 bushes, how much money will she spend?
$234
57 X 61
3,477
Estimate 51 X 51
2,500
What are the partial products of 44 X 44
1,600
160
160
16
What multiplication method allows us to pull apart each factor and distribute?
distributive property
Chris works 36 hours a week. Chris gets paid $20 an hour. If Chris saves his money for 4 weeks, how much money will Chris have?
$2,880
388 X 40
15,520
Estimate 118 X 201
20,000
What are the partial products of 127 X 18
1000, 800, 200, 160, 70, 56
What multiplication method do I want you to avoid using?
arrays :)
40 hours