Multiply by Powers of 10
62 x 1000
62,000
Round each multiple to find the product.
184 x 210
40,000
13 x 3 =
39
64 x 21
1,344
The weight of elephant is 103 times the weight of a cat. If the elephant weighs 14,000 pounds, how many pounds does the cat weigh?
1,000 x 14 = 14,000 so the cat weighs 14 pounds.
90 x 10
900
Round. 19 x 718
14,000
36 x 5
180
132 x 71
9,372
Tyrone has 6 times as many marbles as Pam. Pam has 34 marbles. Louis has 202 marbles. Who has more marbles, Tyrone or Louis? Explain.
34 x 6 = 204 (Tyrone)
204 > 202 Tyrone has the most marbles.
54 x 102
5400
Round. 498 x 47
25,000
625 x 6
3,750
6,301 x 89
560,789
A packing crate can hold 205 oranges. There were 6,000 oranges picked at the large grove. The owner has 32 packing crates. Does he have enough crates to ship out all of the oranges?
205 x 32 = 6,560
6,560 > 6,000 : He has enough shipping crates.
10? x 374 = 37,400
102
Round 936 x 410
360,000
4,893 x 9
44,037
23,567 x 315
7,423,605
Tia drives 127 miles a week. Mac drives 23 times as many miles as Tia in a week. How many miles does Mac drive a week?
2,921 miles
Which is equivalent to 5 x 104? Select all that apply.
A. 5 x 10,000
B. 5 x 100,000
C. 5,000
D. 50,000
E. 50 x 103
A, D, E
Which does not show a reasonable estimate of 360 x 439?
A. 100,000
B. 140,000
C. 160,000
D. 180,000
A
678,423 x 8
5,427,384
50,708 x 404
20,486,032
Kaye sends 184 text messages a month. Bo sends 15 times as many text messages a month as Kaye. How many text messages does Bo send?
2,760 text messages