Numeracy and Estimation revision activity

A series of eight small sets of printable questions, each followed by an estimation question on the Powerpoint which uses the answers you have just calculated. The class work on the sets of questions individually then all attempt to estimate the final answer.

I have found this very effective as a general revision activity with pupils in teams, scoring points out of 5 for the revision questions, and also a mark out of 5 for the quality of each estimate.

The numeracy skills revised are:
1 - Rounding
2 - Perimeter and Area
3 - Angles
4 - Long Multiplication
5 - Units
6 - Decimals
7 - Big Numbers
8 - Time

Provided with answers.