Order the calulations from those with the least value to the greatest. Lots of levels, including; addition pairs to 20, addition pairs to 100, addition and subtraction of multiples of 10, and multiplication of numbers up to 10.
New Maths Curriculum:
KS2 Primary Framework:
Year 3: Add or subtract mentally combinations of one-digit and two-digit numbers
Year 4: Add or subtract mentally pairs of two-digit whole numbers
Year 5: Use knowledge of place value and addition and subtraction of two-digit numbers