Vocabulary
Which property is this :
4 × (6 + 2) = (4 × 6) + (4 × 2).
Distributive
164 x 5
820
36 x 9
324
Mr. Suffridge bakes cookies in batches of 50 and batches of 80. If he bakes 5 batches of 50 cookies,how many cookies does he bake?
250
56 + 70= 126
Which property is this
21 × 34 = 34 × 21.
Communative Property
225 x 4
900
96 x 6
576
The Oliva family spends 1,736 dollars a month on food. How much do they spend on food in 3 months.
5,208
5 x 179
45+ 350+ 500= 895
Which property is this
(1 × 3) × 7 = 1 × (3 × 7).
Associative Property
363 x 7
2,541
28 x 4
112
In one week a Waffle House sells 1,453 waffles how many are sold in 6 weeks?
8,718
1,458 x 9
72+450+3600+9000= 13,122
What is estimate?
To round and come up with an approximate answer to a problem.
482 x 6
2,892
56 x 8
448
Mr. Russo would like to purchase a piano for each of his 4 grandsons and 1 granddaughter.The guitars each cost $291. How much will he spend?
1455
8 x 623
What are partial products?
Multiplying each place value of a number and adding them together to get the answer.
178 x 8
1,424
84x9
756
Mrs. C bakes 32 cookies per batch. If she makes 9 batches how many cookies will she have made?
288
1246 x 3
18+ 120+ 600 +3000= 3738