3. Multiplication and division
3.05 Story problems with multiplication and division
Lesson
Are you ready?
We have already practiced our multiplication tables. Let's try this problem to review.
$6\times8$6×8
Learn
Now we are going to look at how we can compare the size of numbers using multiplication and how we can use division to work out how many times smaller one group is compared to another.
Let's start by watching this video.
Apply
Question 1
James has $5$5 comic books. Mae has $2$2 times as many comic books as James.
How many comic books does Mae have?
Question 2
If Carl is $49$49 years old and his son is $7$7 times younger than him, how old is Carl's son?
Remember!
- Phrases such as "How many times bigger..." or "Make this number __ times bigger," mean we can use multiplication.
- To work out how many times smaller one group is compared to another, divide the larger group by the smaller group.