4th grade · Math · Unit 15 of 15
Times as Many
Compare by multiplying
What your child practices
Multiplicative comparison: reading 35 = 5 × 7 as “35 is 5 times as many as 7”, and solving “times as many” problems, which are different from “more than” problems.
Maine Learning Results learning standard: 4.OA.A.1; 4.OA.A.2 · interpreting multiplication as a comparison and solving times-as-many problems
How we explain it
Children can open this short lesson before they practice.
- “3 times as many” means multiply by 3.
- “3 more than” means add 3.
- If you know the bigger amount, divide to find the smaller one.
Example: Ana has 4 stickers. Jay has 3 times as many. How many does Jay have? 3 times as many as 4 is 3 × 4. Answer: 12
Times as Many in Maine
In the Maine Learning Results, this is unit 15 of 15 in 4th grade Math, after Line Plots & Data.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
Source: Maine Department of Education
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
The red ribbon is 48 inches long. It is 8 times as long as the blue ribbon. How long is the blue ribbon?
- 40 inches
- 6 inches
- 9 inches
- 14 inches
- 384 inches
6 inches
Hint: Divide: 48 ÷ 8.
Question 2
Ravi has 5 marbles. A friend has 4 times as many. How many marbles does the friend have?
- 20
- 9
- 17
- 21
- 25
20
Hint: 4 times as many means 4 × 5.
Question 3
Leo has 2 apples. Mia has 5 times as many as Leo. How many apples does Mia have?
- 7
- 10
- 13
- 11
10
Hint: 5 times as many: 5 × 2.
Question 4
Which sentence matches 15 = 5 × 3?
- 5 is 3 times as many as 15
- 15 is 5 more than 3
- 3 is 5 times as many as 15
- 15 is 5 times as many as 3
15 is 5 times as many as 3
Hint: 5 × 3 means 5 groups the size of 3, so 15 is 5 times as many as 3.
Question 5
Which sentence matches 12 = 4 × 3?
- 12 is 4 more than 3
- 12 is 4 times as many as 3
- 3 is 4 times as many as 12
- 4 is 3 times as many as 12
12 is 4 times as many as 3
Hint: 4 × 3 means 4 groups the size of 3, so 12 is 4 times as many as 3.
Question 6
Leo has 2 apples. Mia has 3 more than Leo. How many apples does Mia have?
- 6
- 2
- 7
- 5
5
Hint: 3 more than: 2 + 3.