Estimating and checking calculations

Estimating and checking calculations worksheet
Susie has worked out answers to these calculations. Have a look through and estimate what you think the answer should be. Don’t spend ages working out the exact answer! Give Susie a tick if you think she is right or a cross if you think she is wrong. In the last column, explain why she is right or wrong. Afterwards, use a calculator to check whether Susie’s answers were right or not.

Key stage: Year 4, KS2