Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**fergul****Member**- Registered: 2013-09-06
- Posts: 3

What am I doing wrong with this division

561/15

My ans 37.6? I know this is incorrect on calculator it is 37.4

My working out:

56/15 is 3 with 11 remaining

111/15 is 7 with 6 remaining.

I like doing division in standard manner and layout rather than rounding up or using factors etc.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 93,618

Hi;

Just continue the process. 60 / 15 is 4.

Remember to put the 0 after the decimal point when you start. 561 is written as 561.0 so when you get that last carry you can continue past the decimal point.

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**fergul****Member**- Registered: 2013-09-06
- Posts: 3

I know this may sound stupid but how do you know to add 0 and keep dividing? When you get 4, how do you know that is the end? Why don't you add 0 to 40 and divide again by 15?

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 93,618

You just keep adding it to the next digit like you were doing before the decimal. If you have a remainder of 5 and the next digit is 0 then it becomes a 50. This can happen before the decimal too.

Of course 561 is the same as 561.0 or 561.00 or 561.000 etc.

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**fergul****Member**- Registered: 2013-09-06
- Posts: 3

Thanks, I think I get it now.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 93,618

That is very good and welcome to the forum. try a few more and come back with any questions. Good luck.

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

Pages: **1**