Powers of 10
3 x 100
300
Round to the nearest hundred: 438
400
68 x 10
680
A picture showing a multiplication problem, using equal groups put into rows, is called...
Array
23 x 4
92
13 x 7
91
Round to the nearest ten: 79
80
Each fourth grader needs 5 pencils a month. If there are 75 total fourth graders, how many pencils does Mrs. Habben need to buy this month?
375
89 x 2
188
87 x 5
435
Estimate the product: 17 x 9 = ____
20 x 9 = 180
400 x 2
800
45 x 3
135
88 x 7
616
Estimate the product: 337 x 4 = ______
300 x 4 = 1,200
200 x 5
1,000
The library has 76 bookcases. Each bookcase has 8 books. How many total books are in the library?
608
6573 x 5
32,865
Estimate the product: 4,762 x 6 = _____
5,000 x 6 = 30,000