Multiples of 10
Area Method
Word Problems
Standard Algorithm
100

50 x 6

300

100

16 x 5

80

100

Every day of the week, I eat 10 pieces of candy. How much candy do I eat in one week?

70 pieces
100

43x3

129

200

70 x 20

1400

200

96 x 8

768

200

13 dogs each have 8 puppies. How many puppies are there in total?

104

200

98x7 

686

300

900 x 80

72,000

300

45 x 12

540

300

In the auditorium at ESCS, there are 30 rows. If 17 kids sit in each row, how many kids are there in total?

510

300

22x22

484

400

What is nine thousand times eight hundred ? 

7,200,000

400

139 x 72

10008

400

I go trick-or-treating at 18 houses. Each house gives me 11 pieces of candy. Do I get more than 200 pieces of candy?

No
400

86x43

3698

500

How many zeros are there in 1 million x 1 million ?

12 (1,000,000,000,000)

500

111 x 111

12321

500

There are 24 humans and 17 dogs in a room. How many total legs are there?

116

500

345x67

23,115