Subtraction / Difference Using a Number Line
Practice jumping from the smaller number to the larger number on a number line. Lots of choice of level, including; jumping from a 2-digit number to 100, from a 2-digit number to a 3-digit number and between 3-digit numbers. Great for developing mental methods of calculation.
New Maths Curriculum:
Year 2: Add and subtract numbers using concrete objects, pictorial representations, and mentally, including: a two-digit number and ones; a two-digit number and tens; two two-digit numbers;adding three one-digit numbers