Remembering how to equally share a number into groups can help us in this lesson. Let's try this problem to review.
Complete the statement with the missing number.
If you get 8 groups of ⬚, then altogether you have 80.
We can rewrite story problems as a division or a multiplication to find the unknown in the problem.
How do we know if we need to multiply? Let's see how to solve this story problem.
There were 2 rows of trees in a field, with 3 trees in each row.
Write a number sentence for this story problem to find the total number of trees in the field.
If we need to find the total for multiple equal groups, we need to multiply.
When our story has some sharing, it's time for division, as we see in this video.
Dylan has 120 chocolates to give out to 10 guests at his birthday party and wants to make sure each guest gets the same amount.
Write a number sentence for this story problem to find how much each guest would get.
If we know our total and want to find out how many groups we have, or how many are in each group, we need to divide.
For story problems, we need to look for key words that tell us what we need to do.
generalises properties of odd and even numbers, generates number patterns, and completes simple number sentences by calculating missing values