Learning chunk numbers in maths...?

Question

i have to learn how to chunk numbers i need to work out this sum
89 divided by 3...
please help .....

Additional Details

hi i have got the answer, after alot of searching on net..89 divided by 3
u round the 9 to a unit 10 then layout like this
89
-30 3 x 10
-----
59
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then round the 8 to a unit 10
using answer to first part
----
59
30 3 x 10
----
29 divide 29 by 3 =9 remainder 6
----
add the 10
10
9 remainder 6
-------
29 r 6
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oh my god and they say maths is easier now at school bring back the old methods please.....
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Answer 1

Best Answer - Chosen by Voters

__29
3| 89 (3 goes into 8 2 times)
__6 (3 times 2 is 6)
__29 (Subtract 8-6=2, and drop down the next number 9)
__27 (3 goes into 29 9 times and 3 times 9 is 27)
___2 (Subtract 29-27 = 2, 2 is the remainder)
89 divided by 3 is 29 & 2/3

I've never heard of chunk numbers.

Answer 2

29.666667

Answer 3

I've not heard of chunk numbers, either. Would it be a way to calculate the sum by changing the problem to one with easier calculations? Such as -

89 / 3 is the same as (90 -1) / 3
= (90 / 3) - (1 / 3)
= 30 - 1/3
= 29 2/3 (or 29.66666...)

Answer 4

Never heard of chunk numbers but 89 divided by 3 =29 2/3