# all Addition worksheets by Subject

Set a stopwatch and time yourself working out the first set of ten number sentences. Now time yourself doing the next set. Did you beat your first time? See if you can get faster doing the third and fourth set.

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### Partitioning to add three-digit numbers

When adding two three-digit numbers, add the hundreds numbers first, then the tens numbers and then the units. Can you use this method to work out these problems?

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Mark has eight cards and he needs to arrange them in this grid so that there is a card in every square, except the middle one. They need to be arranged so that each column and each row of numbers adds up to 10. Can you work out how to do it?

### Addition and subtraction facts practice

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### Adding two-digit numbers using partitioning

When adding two two-digit numbers, it is a good idea to add the tens first, then add both the units and finally add the two results. Can you use this method to work out these sums?

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### Y1 money word problems: addition to 40p

Let's go shopping! Can you work out how much it will cost to buy these items?

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### Mixed-up mental maths

How quickly can you answer these mental maths questions? Get an adult to time you! On your marks, get set...

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### Calculations: different ways of working out

Can you draw pictures to help solve these tricky word problems?

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Can you read through these story problems and do the calculations?

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### Adding 10 to a number

This is a calculation machine! It’s set to programme Add 10 today. Every number that goes in gets 10 added to it. Choose some numbers to go into the machine, then use the 100 square to add 10 to each one. Remember: you don’t need to count along 10 to add 10 to your number, just drop down one row on the 100 square.

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### Year 1 money maths: coin combinations

How good are you at counting money? Can you combine these coins and fill the purse?

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### Using the correct calculation

Work out what these problems are asking you to do. Then write the calculation and work it out!

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### Using a number square: addition

Can you use the number square to complete these calculations?

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### Using a number line 0-20: addition

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### Problem solving: doubles

Ben and Bella are twins. They have to have the same amount of everything or they begin to get cross! Work out these word problems, then write down the double calculation you did…

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Do you like solving problems? See if you can answer these addition problems using numbers up to 20.

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### Number bonds to 10 practice

Do you know your number bonds to 10 without having to think about them? Put a tick or cross next to each calculation to show if they are right or wrong!

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### Know your number facts speed quiz

Ask a grown-up to time how long it takes you to say the answer to these questions. Then write some questions yourself and test an adult!

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