Compare numbers using multiplication
key notes :
πΉ Multiplication Shows Equal Groups
- Multiplication means adding equal groups.
- Example: 3 Γ 4 = 12 means π 4 + 4 + 4 = 12
βοΈ Use Multiplication to Compare Two Numbers
- We check how many times one number fits into another.
- Example: 20 is 4 times 5 because 5 Γ 4 = 20 β
π βTimes As Manyβ Comparison
- The phrase “times as many” tells how much bigger one number is.
- Example:
π§ Raju has 6 pencils
π¦ Teja has 18 pencils
β Teja has 3 times as many pencils as Raju (6 Γ 3 = 18)
βπ’ Relation Words to Remember
| Word / Phrase | Meaning |
|---|---|
| Times as many | Multiply |
| Twice | Γ2 |
| Thrice | Γ3 |
| 4 times more | Γ4 |
π Use Multiplication to Compare Groups
If both numbers share a common factor, we can compare easily:
- Example: 8 and 24
- 8 Γ 3 = 24 β 24 is 3 times 8
ππ Smaller to Bigger or Bigger to Smaller
- To compare smaller to bigger β Multiply
Example: 6 β 24
6 Γ 4 = 24 - To compare bigger to smaller β Divide
Example: 24 β 6
24 Γ· 4 = 6
π’β€οΈ Multiplication Comparison Sentence Frames
Use these for speaking & writing:
| Sentence Starter | Example |
|---|---|
| ___ is ___ times ___ | 16 is 4 times 4 |
| ___ has ___ times as many ___ as ___ | Riya has 5 times as many stickers as Ronit |
| ___ is twice / thrice / 4 times ___ | 40 is 4 times 10 |
π Example Comparisons
| Numbers | Comparison Sentence |
|---|---|
| 7 and 21 | 21 is 3 times 7 |
| 4 and 20 | 20 is 5 times 4 |
| 9 and 3 | 9 is 3 times 3 |
π Quick Tip π―
β
If you multiply the smaller number and reach the bigger number β Use βtimes as manyβ
β If multiplication doesnβt reach the number β They are not multiples
Learn with an example
π₯ Use the equation to complete the sentence.
4=2Γ2
___ is 2 times as much as 2.
The equation shows a multiplication fact.
4=2Γ2
The sentence is another way to write the same fact.
4 is 2 times as much as 2.
π₯ Use the equation to complete the sentence.
8 = 4 Γ 2
____ is 4 times as much as 2.
The equation shows a multiplication fact.
8 = 4 Γ 2
The sentence is another way to write the same fact.
8 is 4 times as much as 2.
π₯Use the equation to complete the sentence.
10=2Γ5
____ is 2 times as much as 5.
The equation shows a multiplication fact.
10=2Γ5
The sentence is another way to write the same fact.
10 is 2 times as much as 5.
Let’s practice!ποΈ

