In Years One and Two children are taught to read, write and interpret number sentences using the symbols +,- and =. Children use objects such as counters, number lines, pictures and mental strategies to help them to solve their calculations.
In Year One they add and subtract using numbers up to 20.
Continuing on from their number work in Reception the children consolidate rapid recall of number bonds for numbers up to ten, including recall of doubles. They apply their knowledge of pairs of numbers that make ten to help them to identify pairs of numbers to make twenty.
9 + 1 = 10 19 + 1 = 20
In Year Two children begin to add and subtract using larger numbers including:-
- a two-digit number and ones
- a two-digit number and tens
- two two-digit numbers
- adding three one-digit numbers