Divide by 100
for 4th grade

Mental method to divide by 100

To divide by 100, all you have to do is move the decimal point two places to the left. The number gets smaller because you're splitting it into 100 equal parts. Let's see this technique in action with some examples:

Divide 500 by 100

500 has no decimal point, so let's put one in, right after the last digit: 500.0

Now, move the decimal point two place to the left: 500.0 becomes 5.000

That's it: 500 ÷ 100 = 5

Divide 1200 by 100

1200 has no decimal point, so imagine there is one right after the last digit: 1200.0

Now, move the decimal point two places to the left: 1200.0 becomes 12.00

So 1200 ÷ 100 = 12

Remember, when you divide by 100, you are sharing the number into one hundred equal parts. That means the number gets a lot smaller. So the answer to a division by 100 should always be a much smaller number than the starting number.

Divide 43765 by 100

So, move the decimal point two places to the left: 43765 becomes 437.65

43765 ÷ 100 = 437.65

This topic asks you to calculate division by 100 for each given number. The numbers to divide range from 100 up to 100,000.

Related topics

• Divide by 5
• Divide by 10
• Divide by 1000