Topic 5: Lesson 1- 2 and 5 as factors

Emma arranged 12 balls on the floor. What is another way Emma could arrange the array of balls?

• 5 rows of 2 balls

• 6 rows of 2 balls

• 8 rows of 1 ball

• 3 rows of 5 balls

Isaac arranged his toy cars using this array. What number sentences could he write to show how many toy cars he has?

• 5 × 2 = 2 × 5

• 3 × 4 = 4 × 3

• 5 × 3 = 3 × 5

• 6 × 3 = 3 × 6

A pet store has 5 tanks of lizards. Each tank has 7 lizards. Which is NOT a way to find how many lizards the pet store has?

• 5 x 7

• 7 x 5

• 5 + 5 + 5 + 5 + 5

• 7 + 7 + 7 + 7 + 7

Adam puts 5 cans of vegetables in each of 4 boxes. Which number sentence shows the total number of cans?

• 5 + 5 + 5 + 5 +5 = 25

• 4 + 4 + 4 = 16

• 4 × 4 = 16

• 5 × 4 = 20

June earns $5 per hour. How much does she earn if she works for 8 hours?

• $13

• $40

• $45

• 58

Andrea saw 4 motorcycles in the parking lot. Each motorcycle has 2 wheels. How many wheels did she see in all?

• 10

• 6

• 8

• 2

What is the product of 9 and 2?

• 11

• 16

• 18

• 22

What is the product of 5 and 9?

• 45

• 56

• 40

• 38

There are 12 eggs in each carton. How many eggs are there in 2 cartons?

• 14 eggs

• 23 eggs

• 24 eggs

• 26 eggs

Jose bought 2 bags of apples at the market. There were 8 apples in each bag. Which is one way to find how many apples Jose bought?

• 2 + 8

• 8 - 2

• 8 + 8

• 2 + 2