Multiplication as Equal Groups
Use groups, arrays, and repeated addition to multiply
Multiplication as Equal Groups
Use groups, arrays, and repeated addition to multiply
Math - Grade 2-3
- 1
There are 4 bags. Each bag has 3 apples. How many apples are there in all? Write a repeated addition sentence and a multiplication sentence.
There are 4 equal groups with 3 apples in each group.
There are 12 apples in all. The repeated addition sentence is 3 + 3 + 3 + 3 = 12, and the multiplication sentence is 4 × 3 = 12. - 2
Write a multiplication sentence for 5 + 5 + 5 + 5.
The multiplication sentence is 4 × 5 = 20 because there are 4 equal groups of 5. - 3
A teacher puts 2 pencils on each of 6 desks. How many pencils are there in all?
Count by 2s six times.
There are 12 pencils in all because 6 groups of 2 equals 12. - 4
Look at the equal groups. There are 3 plates with 4 cookies on each plate. Write the multiplication sentence and find the total number of cookies.
The multiplication sentence is 3 × 4 = 12. There are 12 cookies in all. - 5
Draw 5 equal groups with 2 stars in each group. Then write the total number of stars.
Make sure each group has the same number of stars.
A correct drawing shows 5 groups with 2 stars in each group. There are 10 stars in all because 5 × 2 = 10. - 6
There are 4 rows of chairs. Each row has 5 chairs. How many chairs are there in all?
There are 20 chairs in all because 4 × 5 = 20. - 7
Which repeated addition sentence matches 3 × 6? Choose one: 3 + 3 + 3 + 3 + 3 + 3 or 6 + 6 + 6. Explain your choice.
The first number tells how many groups there are.
The sentence 6 + 6 + 6 matches 3 × 6 because it shows 3 equal groups of 6. - 8
A farmer has 7 baskets. Each basket has 2 eggs. How many eggs does the farmer have in all?
The farmer has 14 eggs in all because 7 groups of 2 equals 14. - 9
Fill in the blanks: 4 groups of 4 is the same as ___ + ___ + ___ + ___ = ___ and ___ × ___ = ___.
Add 4 four times.
4 groups of 4 is the same as 4 + 4 + 4 + 4 = 16 and 4 × 4 = 16. - 10
There are 2 aquariums. Each aquarium has 8 fish. Write a multiplication sentence to show the total number of fish.
The multiplication sentence is 2 × 8 = 16. There are 16 fish in all. - 11
Maya sees 6 tricycles. Each tricycle has 3 wheels. How many wheels are there in all?
Each tricycle is one group of 3 wheels.
There are 18 wheels in all because 6 × 3 = 18. - 12
Circle the multiplication sentence that matches the picture: 5 × 3 = 15 or 3 × 5 = 15. The picture shows 5 groups with 3 dots in each group.
The matching sentence is 5 × 3 = 15 because the picture shows 5 groups with 3 dots in each group. - 13
Write a story problem that matches 3 × 4 = 12.
Your story should have 3 equal groups with 4 in each group.
One possible story is: There are 3 boxes with 4 crayons in each box. There are 12 crayons in all. - 14
There are 9 flowers. They are arranged in 3 equal groups. How many flowers are in each group? Write a multiplication sentence that matches.
There are 3 flowers in each group. A matching multiplication sentence is 3 × 3 = 9. - 15
Sam says 2 × 7 means 2 groups of 7. Lee says it means 7 groups of 2. Who is correct for this worksheet's equal group meaning? Explain.
Think about which number tells the number of groups.
Sam is correct because 2 × 7 means 2 equal groups with 7 in each group. Both ways have the same total, but the group meaning is different.