Multiply by Ten
Round Products
Find the product
Multiply With Regrouping
Problem Solving
100

60 X 20

1,200

100

Round the product 63 X 19

A. 2,000

B. 1,200

C. 3,000

B. 1,200

100

Find the product: 13 X 42

The product is 546.

100

48 X 38

1,824

100

A toy company makes wooden blocks. A carton holds 85 blocks. How many blocks can 19 cartons hold?

1,615 blocks 

200

10 X 90

900

200

Round the product 43 X 68? 

A: 3,500 

B: 2,900 

C. 2,400 

D. 280

B. 2,900

200

Find the product : 15 X 24

The product is 360.

200

59 X 52

3,068

200

Each student in Ms. Sike's kindergarten class has a box of crayons. Each box has 36 crayons. If there are 18 students in Ms. Sike's class, how many crayons are there in all?

648 Crayons

300

30 x 50

1,500

300

Round the product of 78 X 21

A. 1,600

B. 2,600

C. 1,500

A. 1,600

300

Find the product: 18 x 62

The product is 1,116

300

13 x 13 

169

300

Kenny bought 20 packs of baseball cards. There are 12 cards in each pack. How many cards did Kenny buy?

240 Cards

400

60 x 80

4,800

400

Round 31 x 56 

A. 1,000

B. 500

C. 1,700

C. 1,700 

400

Find the product: 16 X 19

The product is 304.

400

36 X 12

432

400

At West School, there are 20 classrooms. Each classroom has 20 students. How many students are at West School?

400 students 

500

90 x 70

6,300

500

Round the product 53 X 93? 

A. 4,000     B. 5,000        C. 6,000

What is B. 5,000

500

Find the product: 23 X 25

The product is 575.

500

91 X 19

1,729

500

For the school play, 40 rows of chair are set up. There are 22 chairs in each row. How many chairs are there in all?

880 chairs