Write an equation for 90 is 10 times as much as 9.
90 = 10 x 9
200
Estimate 27 x 5
150
200
10 x 300
3,000
200
27 x 3
81
200
631 x 5
3,155
300
Write a sentence for:
24 = 3 x 8
24 is 3 times as many as 8.
300
Estimate 56 x 32
1,800
300
40 x 900
36,000
300
72 x 6
432
300
437 x 4
1,748
400
Miss Rose eats 8 times as many Peanut Butter M&Ms as Starbursts. If she eats a total of 36 pieces of candy, how many Peanut Butter M&Ms did she eat?
32 M&Ms
400
Reasonable or unreasonable (and explain).
64 x 5 = 320.
Reasonable
By estimation, 60 x 5 = 300; 320 is reasonable (and the exact answer).
400
800 x 800
640,000
400
89 x 9
801
400
907 x 8
7,256
500
Andrew watched a movie 4 more times than Abby. If Abby and Andrew watched the movie a total of 15 times, how many more times did Andrew watch the movie than Abby?
Andrew watched the movie 12 times.
Abby watched it 3.
12 - 3 = 9
500
The three science teachers needed 224 tablespoons of cornstarch each. Mrs. Fisher says that about 900 tablespoons of cornstarch are needed. Reasonable or unreasonable?
Unreasonable. 224 rounds to 200. 200 x 3 teachers = 600 tablespoons.