EQUAL GROUPS
What does it mean for groups to be equal?
Each group has the same number of objects.
What can you use to show multiplication as repeated jumps?
A number line.
In an array, what do you count first?
Answer: Rows.
Solve: 3 × 4
Answer: 12
What operation can be used to split objects into equal groups?
Answer: Division.
Draw 3 equal groups with 4 objects in each group. Write the multiplication equation.
Answer: 3 × 4 = 12
Use a number line to show 3 × 4. How many jumps should you make?
Answer: 3 jumps of 4; you land on 12.
How many rows would you draw for 3 × 5?
Answer: 3 rows.
Solve: 6 × 5
Answer: 30
12 objects are divided into 3 equal groups. How many objects are in each group?
Answer: 4.
There are 5 groups with 2 objects in each group. How many objects are there altogether?
Answer: 10
What number do you land on if you make 5 jumps of 3 on a number line?
Answer: 15
How many objects would be in each row for 3 × 5?
Answer: 5.
What is 4 × 7?
Answer: 28
Draw 15 objects divided into 5 equal groups. How many are in each group?
Answer: 3.
Draw equal groups to represent 4 × 6.
Answer: 4 groups of 6 = 24
Describe how you would use a number line to solve 4 × 5.
Answer: Make 4 equal jumps of 5 and land on 20.
How many objects are in an array with 4 rows and 6 objects in each row?
Answer: 24.
True or False: 3 × 5 = 5 × 3
Answer: True
There are 20 objects. Each group has 4 objects. How many equal groups can you make?
Answer: 5 groups.
There are 6 equal groups with 5 objects in each group. Write the multiplication equation and find the total.
Answer: 6 × 5 = 30
You make 6 equal jumps and land on 24. How many spaces did you jump each time?
Answer: 4 spaces each time.
Draw an array to represent 5 × 7. How many objects should your array have altogether?
Answer: 35.
What property of multiplication tells us that we can multiply numbers in any order and get the same product?
The commutative property of multiplication.
24 objects are divided into equal groups of 6. How many groups are there? Draw the groups to prove your answer.
Answer: 4 groups.