Multiplication can be represented as repeated addition. The document provides examples of using multiplication to solve one-step word problems involving finding the total number of objects from a given number of groups containing the same number of objects in each group. Examples show setting up multiplication equations to represent 4 groups of 3 balls, 6 groups of 3, 4 groups of 2, and 2 groups of 5.

1. Whole Numbers
Multiplication
What will we learn today?
• Multiplication as repeated addition
• Solving 1- step word problems

2. Take a look at this example.
There are 4 boxes.
Each box has 3 balls.
How many balls are there altogether?
3 + 3 + 3 + 3 = 12

3. A few ways to represent the answer.
3 + 3 + 3 + 3 = 12
4 threes = 12
4 groups of 3 = 12
4 x 3 = 12
(We use “x” to represent „groups of‟)
There are 12 balls altogether.

4. Let‟s try another question.
3 + 3 + 3 + 3 + 3 + 3 = 18
6 threes = 18
6 groups of 3 = 18

5. 4 groups of 2
4 X 2
8
4 + 4 + 4 + 4
4 twos
2 groups of 5
2 X 5
5 + 5
10
2 fives

6. Are you ready to
try out the
questions?