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Addition within 100
Adding within a hundred: small numbers first, then ones and tens, two two-digit numbers and three small numbers.
Choose what to practise
Each round is 10 questions, and takes 5 to 10 minutes.
Finished
Adding within a hundred: small numbers first, then ones and tens, two two-digit numbers and three small numbers.
Choose what to practise
Each round is 10 questions, and takes 5 to 10 minutes.
Finished
In Year 2, children develop fluency with addition facts to 20 and learn to add numbers up to 100. They practise adding ones and tens to two-digit numbers, adding two two-digit numbers, and solving missing-number problems.
Make the next ten. Breaking a calculation into smaller steps makes mental addition easier. To work out 47 + 6, split 6 into 3 and 3: add 3 to reach 50, then add 3 more to get 53.
Add tens, then ones. To calculate 38 + 25, add 20 to get 58, then add 5 to get 63.
Watch out for forgotten tens. When adding 47 + 6, some children calculate 7 + 6 = 13 but forget to carry the extra ten, giving the wrong answer. Number jumps can help them see how the ones combine to make a new ten.
If your child is still counting on their fingers for facts such as 7 + 8, practise Number Bonds to 20 before moving on.
In Year 3, children extend these skills to three-digit numbers and learn written addition methods, including column addition. Confidence with place value and making tens provides a foundation for this work.