What is the Big Number Crunch?
The Big Number Crunch was designed to improve calculation skills at St Joseph’s. It has broken down levels (or steps) of calculation in order to see and promote progression.
Each child will have an addition, subtraction, multiplication and division target. These targets are taken from the steps of calculation.
E.g. In year 6 one child has the following targets:
Addition – step 9 Subtraction –step 10
Multiplication – step 8 Division – step 7