For example
Calling the crowd at the match 2000 people is an approximation.
In Grade 6
Children round before calculating to get an approximation they can check the real answer against.
Watch out for
Children often treat an approximation as the final answer. It is there to check that the exact answer looks sensible.
Say it at home
Before adding up shopping, ask your child for a rough total to expect.
Try it together
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