Step 5 Objective
Multiply and divide decimals mentally by 10 or 100, and integers by 1000, and explain the effect.
- 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
Complete statements such as:
4 ÷ 10 = 
4 ÷ = 0.04
0.4 × 10 = 0.4 × = 400
0.4 ÷ 10 = 0.4 ÷ = 0.004
÷ 100 = 0.04 ÷ 10 = 40
× 1000 = 40,000 × 10 = 400