ME 503 Multiplication Strategies

What number is missing from the area model for the equation 14 x18?

• 14

• 18

• 4

• 40

What number is missing from the area model for the equation 12 x 25

• 12

• 2

• 20

• 4

Which of these multiplication problems is a part of 5,812 x 7?

• 7 x 100

• 7 x 5

• 7 x 800

• 70 x 2

The red digit is wrong. What should it be instead?

• 4

• 6

• 9

• 5

The red digit is wrong. What should it be instead?

• 2

• 3

• 1

• 5

All of the red digits here are wrong. What should have been placed where the yellow circle is?

(a)  

Which number is missing from the equation?

6 x ___ = 42

• 9

• 8

• 6

• 7

Look at the picture and select the correct answer.

• There are 2 equal groups of 10

• There are 5 equal groups of 4

• There are 4 equal groups of 5

Joe’s homework includes these problems.

Which answer choice should Joe select for the last problem?

• 4,005

• 2,000

• 1,500

• 900

Sophia is helping her grandmother in her shop. She needs to estimate the total profits they will make if they sell 328 items at $9 each. (Don't find the actual total).

• The total will be close to $2,700

• The total will be close to $27,000

• The total will be close to $3,600

• The total will be close to $36,000