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Step 2: Now, insert two ‘00’ on the right side of the product.
Step 3: Hence, the product is 345 x 100 = 34500.
Example:2 305 x 100
Step1: Multiply 305 x 1 = 305
Step2: Now insert two ‘00’ on the right side of the product.
Step3: Hence, the product is 30500
3. To multiply a given number by 1000: Multiply the non-zero given number by 1
and insert three ‘000’ on the right side of the product.
Example1: 345 x 1000
Step 1: Multiply 345 x 1 = 345
Step 2: Now, insert three ‘000’ on the right side of the product.
Step 3: Hence, the product is 345 x 1000 = 345000

**Multiplication by the multiples of 10, that is 20, 30, 40………

Example1: 3 x 20 =60

Step 1: Multiply the given non - zeronumbers.
3 x 2 = 6
Step 2: Insert one zero on the right of the product.
3 x 20 = 60

Example2: 30 x 20 = 600

Step1: Multiply the given non-zero numbers, 3 x 2 =6
Step2: Count zero present at the right side of the numbers,(30 x 20)
Step3: Insert the number of zeros in the product on the right side.
30 x 20 = 600

**Multiplication by the multiples of 100,that is 200, 300, 400…….

Example 1: 4 x 600

Step 1: Multiply the given non-zero number.

4 x 6 = 24

Step2: Insert two zero on the right of the product.

4 x 600=2400

Example 2: 40 x 600