Step 4 Objective
Know and apply simple tests of divisibility.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do
Recognise that a whole number is divisible by:
- 3 if the sum of its digits is divisible by 3;
- 6 if it even and also divisible by 3;
- 8 if half of it is divisible by 4, or the last three digits are divisible by 8;
- 9 if the sum of its digits is divisible by 9;
- 25 if the last two digits are 00, 25, 50 or 75.