4.OA.2
Support Videos & Extra Practice
This standard builds on the ideas learned in 4.OA.1. In this standard, students must use multiplication and division to solve word problems involving multiplicative comparison.
For example,
- Sally is five years old. Her mom is eight times older. How old is Sally's mom?
5 x 8 = 40
Her mom is 40 years old.
- Joe has 8 pencils. This is 4 times as many pencils as Gina. How many pencils does Gina have?
8 = 4 x G
G = 2
Gina has 2 pencils.
- A red scarf costs $18. A blue scarf costs $6. How many times as much does the red scarf cost compared to the blue scarf?
6 x p = 18
p = 3
The red scarf costs 3 times as much as the blue scarf.