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### Course: Arithmetic>Unit 5

Lesson 5: How 10 relates to place value

# Dividing whole numbers by 10

Lindsay finds a pattern from dividing whole numbers by 10.

## Want to join the conversation?

• so its like if its 80 divides by 10 its going to be a single digit from 80 so 8?
• Yes, move the dot to the left as many zero you have.
80=80.0
80.0 / 10 = 8.00
435.45 / 100 = 4.3545
0.23 / 10 = 0.023

etc
• i need help with math the ones that have a number then this =
• so say have 10 divided by 2 that would = 5 since 5x2=10.
Another example is if you have 100 divided by 10 that would equal 10 since 10 x 10= 100. Get it now
• I don’t understand 10x990,000! I’m having a meltdown!
• To multiply any whole number by 10, attach a 0 on the right. So 10x990,000 = 9,900,000.

Have a blessed, wonderful day!
• this doesn't make any sense to me can anyone explane?
• when you are dividing by 10 like 650 divided by 10 you simply take away the 0 at the end of the first number and thats the answer so with 650 divided by 10 the answer is 65. I hope that helped
• What if their was no zero in the ones place? What if their was a different number?
• then you just move the decimal to the right one place
• Is this for decimals or regular whole number?
• when will the work actually get hard? Is my question.
• Believe me, after a few grades it will get really hard. Enjoy, and learn. You can learn anything. When you're a master at this and next few grades, again, believe me, `nothing`, absolutely `nothing` will be hard enough to stop you. Good luck on your travels through math!
Sincerely, Arctic.
• Wait, if we divide by 10 then it just takes away a 0 Right?
• is 300,000% 10,000 3,000? I need help with it
• `300,000 / 10,000` is actually `30`.
Dividing by `10,000` means we remove `4` zeroes from the starting `300,000`. In other words, we shift the place values of `300,000` down `4` times.
So `300,000 / 10,000 = 30`.

Hope this helped!