Year 1
Kindergarten (US) · ages 5–6
Year 2
Grade 1 (US) · ages 6–7
Number Bonds to 20
Pairs that make twenty on stacked ten frames, part-whole models and missing-number equations.
Year 2 · ages 6–7
Doubles
Sixteen doubles, each one a number added to itself, to build the quick recall that near doubles and times tables rest on.
Year 2 · ages 6–7
Halving Even Numbers
Sixteen even numbers to halve, the inverse of doubling.
Year 2 · ages 6–7
Add Multiples of 10
Add a multiple of ten to a two-digit number and see that only the tens digit changes.
Year 2 · ages 6–7
Subtract Multiples of 10
Take a multiple of ten away from a two-digit number, where only the tens digit changes.
Year 2 · ages 6–7Year 3
Grade 2 (US) · ages 7–8
Rounding to the Nearest 10
Three number lines to show which ten a number is nearer to, then twelve more to round from memory.
Year 3 · ages 7–8
Rounding to the Nearest 100
Number lines first, then a dozen numbers to round to the nearest hundred, with exact halves rounding up.
Year 3 · ages 7–8How to use these
A tip for mental maths
Little and often works best. A minute of bonds or doubles each day builds the recall that written methods later rely on.
More topics
Practise on a screen with MathBase
The free-to-start maths app for ages 3–20, with games, lessons and a progress report for parents. No ads.