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Methods to do £6.00 divided by 8?

(11 Posts)
CookieDoughKid Thu 14-Apr-16 18:20:35

I can do £6 ÷ by 8 via long division (old school ) but my dd hasn't been taught long division so I don't want to introduce her to it just yet. We have some money problems to solve. I'm not good at mental maths. What easy methods would you suggest to help here? My dd is 8. Thanks in advance!

SecretlyChartreuse Thu 14-Apr-16 18:22:20

Divide by two three times?
So £3
Then £1.50
Then 75p

Snowberry86 Thu 14-Apr-16 18:23:13

Halve it, then halve it again, then halve it again!


blackteaplease Thu 14-Apr-16 18:24:35

My first thought was to divide by 4 then 2 but I have no idea how maths is taught nowadays.

CookieDoughKid Thu 14-Apr-16 18:32:00

For the halve method, how is that connected to 8? Sorry to be dim. The half method I can see is the easiest way to do this but I'm not connecting the dots as it how it is divisible by 8.

contortionist Thu 14-Apr-16 18:35:05

Alternatively, 6/8 = 3/4, so it's three-quarters of a pound, which is 75p (possibly easier for Americans!). I prefer the halving-three-times method though.

contortionist Thu 14-Apr-16 18:36:14

8 = 2 * 2 * 2, so multiplying by eight is the same as doubling three times. And to undo it, halve three times.

AngieBolen Thu 14-Apr-16 18:37:33

As other posters, I divided by 4, then halved my answer. That's how I would do it in everyday life. I have no idea how to do ling division.

CookieDoughKid Thu 14-Apr-16 18:44:46

Thank you contortionist (and everyone else!). It's so simple really! I will remember thexactly halving method in the future! !

irvineoneohone Fri 15-Apr-16 17:14:38

Is this primary?
If she wasn't taught long division yet, I would do £6 = 600 P
so think about multiple of 8 = 70 X 8 = 560p 600p - 560p = 40p
40 p left, again 5 x 8 = 40p so 70p + 5p = 75p

I wondered the child who hasn't learned long division can figure out 2 x 2 x 2 = 8.

CookieDoughKid Fri 15-Apr-16 21:54:24

Thanks Irvine. We tried your method and my dd found it the most logical. Thank you so much for your response - it really helped.

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