20
Number Bonds to 20
Bonds, addition and subtraction within twenty, including the harder pairs.
Choose what to practise
Each round is 10 questions, and takes 5 to 10 minutes.
Finished
Bonds, addition and subtraction within twenty, including the harder pairs.
Choose what to practise
Each round is 10 questions, and takes 5 to 10 minutes.
Finished
Knowing that 7 + 3 = 10 helps with sums such as 47 + 6, because adding 3 reaches 50 and 3 more makes 53. Addition within 100, a Year 2 game, practises this.