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harding
harding asks:
Q:

math count back

My sister is doing second grade math.  We are supposed to do count backs and don't know what they are.  Could you please let me know.
In Topics: Helping my child with math
> 60 days ago

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Answers (1)

bob
bob , Parent writes:
What "count backs" means to me is this: a method of learning subtraction by counting backwards from the first number in the problem to get to the answer.  For example, 11 minus 3 would be

11 take away 1 is 10
10 take away 1 is 9
9 take away 1 is 8

It's the verbal equivalent of "counting on your fingers" for arithmetic.

Count-backs aren't meant to be a long-term technique for doing subtraction.  They are meant only to teach the concept of subtraction - what it means to subtract one number from another.

Here's a simple worksheet for practicing count-backs on fairly small numbers:

http://tinyurl.com/countbacks-worksheet
> 60 days ago

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