The multiplication symbol is usually represented as ×
Multiplication is the process of repeated addition of one number with respect to another.
For example:
4 × 5 = 5 + 5 + 5 + 5 = 20
This means you are adding 5, four times.
8 × 5 = 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 40
This means you are adding 5, eight times.
Properties of Multiplication
(1) Commutative Property: Changing the order of the numbers does not change the product.
Example:
4 × 3 = 3 × 4.
(2) Associative Property: The grouping of numbers does not affect the product.
Example:
(3 × 4) × 8 = 3 × (4 × 8).
(3) Multiplicative Identity: Any number multiplied by 1 is the number itself.
Example:
8 × 1 = 8
9 × 1 = 9
10 × 1 = 10
(4) Zero Property: Any number multiplied by 0 is always 0.
Example:
9 × 0 = 0
10 × 0 = 0
11 × 0 = 0
Multiplication Table
Question 01
3 + 3 + 3 + 3 = 12 or … twos = 12
(A) 2
(B) 4
(C) 6
(D) 8
Answer: C
We know that:
3 + 3 + 3 + 3 = 12
This is the same as adding 3 four times.
Now, the question asks how many twos make 12. We can think of it like this:
2 + 2 + 2 + 2 + 2 + 2 = 12
Each 2 is added 6 times to make 12.
So, the correct answer is 6
Question 02
Write down the correct answer that matches the given picture.
(A) 4 × 4 × 4 × 4 × 4
(B) 5 groups of 4
(C) 3 groups of 5
(D) 4 × 20
Answer: B
Question 03
6 groups of four is…
(A) 2 tens and 4 ones
(B) 4 tens and 2 ones
(C) 24 tens
(D) 6 × 6 × 6 × 6
Answer: A
6 groups of four = 6 × 4 = 4 + 4 + 4 + 4 + 4 + 4 = 24
2 tens dan 4 ones → 2 tens = 20, 4 ones = 4 → 20 + 4 = 24
Question 04
6 threes is the same as…
(A) 6 + 6 + 6 + 6 + 6 + 6
(B) 18
(C) 6 + 3
(D) 63
Answer: B
“6 threes” means 6 groups of 3.
This can be written as:
6 × 3 = 3 + 3 + 3 + 3 + 3 + 3 = 18
It means you are adding the number 3, six times.
So, the result is 18.
Question 05
There are 5 cupcakes on each tray. How many cupcakes are there altogether on 3 trays?
(A) 8
(B) 10
(C) 12
(D) 15
Answer: D
There are 5 cupcakes on each tray, and there are 3 trays.
So, we can multiply:
3 × 5 = 15
Or we can add:
5 + 5 + 5 = 15
So, there are 15 cupcakes altogether on 3 trays.