45 x 10
450
Write a comparison statement for the following equation.
14 = 7 x 2
14 is 7 times as many as 2
153 x 7
1071
Estimate the product using rounding.
3 x 572
3 x 572 ---> 3 x 600 = 1,800
67 x 10
670
Write a comparison statement for the following equation.
24 = 4 x 6
24 is 4 times as many as 6
423 x 6
2538
Estimate the product using rounding.
5643 x 3
5643 x 3 --> 6000 x 3
= 18000
23 x 5
115
Write an equation for the following comparison statement.
28 is 7 times as many as 4
28 = 7 x 4
4,765 x 4
19060
Find two estimates that the product is between.
3 x 819
819 is between 800 and 900.
3 x 800 3 x 900
= 2400 = 2700
67 x 4
268
Write an equation for the following comparison statement.
35 is 7 times as many as 5.
35 = 7 x 5
367 x 2
734
Find two estimates that the product is between.
9 x 3,450
3,450 is between 3,000 and 4,000
9 x 3,000 9 x 4,000
= 27,000 = 36,000
You read your library book for 45 minutes each day. You read books on your e-reader for a total of 185 minutes each week. You want to find how many minutes you read in all each week.
45 x 7 = 315
315 + 185 = 500
I read 500 minutes in all each week.
87 x 3
261
Write two comparison statements for the following equation.
7 x 6 = 42
42 is 7 times as many as 6
42 is 6 times as many as 7
2,976 x 8
23,808
Draw an area model. Then find the product.
6 x 34
