Multiplication & Division
There are 3 groups with 4 objects in each group. Write a multiplication equation to show the total.
3 × 4 = 12
Look at this description: 4 rows with 3 stars in each row. How many stars are there?
12
In the equation 4 × 5 = 20, what does the 20 represent?
The total number of objects.
True or false: 3 × 4 = 4 × 3
True
There are 3 bags with 5 marbles in each bag. How many marbles are there altogether?
15 marbles
What is 6 × 3?
18
Draw an array to show 3 × 5.
3 rows of 5
Fill in the missing number: 3 × ___ = 18
6
Use a related fact to solve 4 × 6.
24
There are 20 students. They make 4 equal groups. How many students are in each group?
5 students
There are 24 apples. They are put into 4 equal groups. How many apples are in each group?
6 apples
An array has 4 rows and 7 columns. How many objects are in the array?
28
Fill in the missing number: ___ × 7 = 35
5
Break apart 7 × 5 into two easier multiplication facts.
Example: 5 × 5 + 2 × 5 = 25 + 10 = 35.
A farmer has 6 rows of plants. Each row has 4 plants. How many plants does the farmer have?
24 plants
A classroom has 5 tables. Each table has 6 students. How many students are there altogether?
30 students
An array has 24 squares. It has 6 rows. How many squares are in each row?
4
There are 4 equal groups. There are 28 objects altogether. How many objects are in each group? Write an equation to show what you know
28 ÷ 4 = 7
Use what you know about 5s to solve 6 × 5. Explain your strategy.
30. Possible strategy: 5 + 5 + 5 + 5 + 5 + 5 = 30.
There are 32 pencils. Mrs. Hennings puts 8 pencils into each cup. How many cups does she need?
4 cups
There are 36 crayons. Mrs. Hennings puts the same number of crayons in each of 6 boxes. How many crayons are in each box? Write a division equation.
36 ÷ 6 = 6
A student says that an array with 3 rows of 8 is different from an array with 8 rows of 3. Is the student correct? Explain.
No. Both arrays have 24 objects. 3 × 8 = 8 × 3.
Mia has some stickers. She puts them into 5 equal groups. Each group has 8 stickers. How many stickers does Mia have? Write an equation.
5 × 8 = 40
Without adding one group at a time, explain how you could solve 8 × 6 using a known fact.
Example: 8 × 5 = 40, and 8 × 1 = 8, so 40 + 8 = 48.
A zoo has 5 cages. Each cage has the same number of monkeys. There are 35 monkeys altogether. How many monkeys are in each cage? Show an equation and explain how you know.
35 ÷ 5 = 7. There are 7 monkeys in each cage.