Step 3 Objective
Use known number facts and place value to consolidate mental addition and subtraction.
- 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
Add or subtract three-digit multiples of 10.
Add or subtract a single-digit multiple of 100 to or from a three- or four-digit number, crossing 1000.
Add or subtract a three-digit multiple of 10 to or from a three-digit number, without crossing the hundreds boundary.
Continue to find what to add to a three-digit number to make the next higher multiple of 100.
Find what to add to a decimal with units and tenths to make the next higher whole number.
Find the difference between two numbers lying either side of a multiple of 1000.