Unit 5 Math Review (2 x 2 digit) Learning Checkpoint

My cat weights 10 pounds. There are 16 ounces in a pound. What number sentence would I use to find how many ounces the cat weights?

• 10 x 16

• 10 + 16

• 16 - 10

20 x 30 =

• 6,000

• 600

• 500

The product is...

• the answer to an addition (+) problem

• the answer to a subtraction (-) problem

• the answer to a multiplication (x) problem

• the answer to a division (/) problem

Which problem would have a greater product?

14 x 39

or

14 x 79

• 14 x 39

• 14 x 79

• I don't know yet

How many weeks are in a year?

• 52 weeks

• 1,000 weeks

• 1,000,000 weeks

We have math live lessons 2 days a week. 20 students attend each live lesson. I want to know many students attend in one year (52 weeks). What question do we need to answer first?

• How many weeks are in a year

• How many students attend each week (2 x 20)

• I don't know yet

We have math live lessons 2 days a week. Twenty students attend each live lesson. How many students attend the live lesson each week?

• 22

• 40

• 220

If 40 students attend the live lesson each week. How many students attend in year?

Remember: there are 52 weeks in a year

• 40 + 52 = 92

• 40 x 52 = 4,052

• 40 x 52 = 2,080

A factor is...

• a number that can be multiplied

• a number that can be added

• a number that can be divided

The product of two factors is 1,000.

If one factor is 20, the other factor is...

• 20

• 30

• 50