My daughter's homework was all about odd & even numbers, & whether adding & subtracting odd & even will give you an odd or an even answer. So for example, odd + odd = even.
All very straight forward, except that some of the sums had decimals in them (31.3 + 42.6, for example)
DD couldn't do those & asked for our help. DH & I both thought the concept of odd & even only applied to whole numbers, except in certain specific cases, which neither of us can remember but which we thought were probably beyond the scope of the average primary maths lesson.
We asked our yr 9 daughter what she thought & she said she also thought odd & even only applied to whole numbers & asked whether they were supposed to round them.
I've just been & asked the school, & their answer is that if it ends in 1, 3, 5, 7 or 9 then it's odd, regardless of how many places beyond a decimal point the last digit is (so 3 is odd, 0.3 is odd, & so is 0.03.
Can anyone with a maths background confirm for me who is right?
(I should say there is some history here, including previous homework which had a 5x3 grid on it, & the statement underneath "In the 16 squares above.....")
Thanks.
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Primary education
Primary maths help please
106 replies
isitwineoclockyet · 10/10/2011 09:36
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