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Addition

Adding numbers together

Adding Numbers Together

Key Points

  • Addition means combining two or more numbers to get a total
  • The answer to an addition problem is called the SUM
  • Adding 0 to any number doesn't change it (e.g., 5 + 0 = 5)
  • You can add numbers in any order and get the same answer (3+4 = 4+3)

📘 Examples

3 + 5 = ?

Start at 3, count up 5 more: 4, 5, 6, 7, 8. Answer: 8!

24 + 13 = ?

Add ones: 4+3=7. Add tens: 2+1=3. So 24+13 = 37!

Tom has 6 toy cars and gets 4 more. How many total?

6 + 4 = 10 toy cars!

🌟 Fun Fact!

The word 'addition' comes from the Latin word 'additio' meaning 'to give to'! 🎁

Addition is usually the first operation children meet, and how it is introduced shapes a great deal of what follows. The goal is not just getting right answers but understanding that addition combines quantities, which is what makes later work with place value and multiplication make sense.

Most children move through three stages: counting everything, counting on from the larger number, and finally recalling facts from memory. Each stage is necessary, and pushing past one too early tends to produce fragile arithmetic later.

Common mistakes to watch for

  • Counting the first number again instead of counting on from it, so 5 + 3 is worked out by counting to five and then three more, arriving at seven.
  • Forgetting to carry when adding two-digit numbers, giving answers like 27 + 15 = 312 where each column is treated separately.
  • Misaligning columns when writing sums vertically, particularly when the two numbers have different digit counts.
  • Believing addition always makes a number bigger, which causes confusion when zero and later negative numbers appear.

How to practise at home

  • Use everyday objects. Counting out real things makes the idea of combining quantities concrete in a way worksheets do not.
  • Practise number bonds to ten until they are automatic. Almost all mental addition builds on knowing that 7 and 3 make 10.
  • Ask for the answer in a sentence, so the child says seven cars altogether rather than just seven.
  • Keep sessions to five or ten minutes. Short daily practice beats long weekly sessions for building recall.

Frequently asked questions

What age do children learn addition?
Most children begin adding small numbers around age five or six, in grade one, starting with objects they can count and moving toward mental recall over the following two years.
What are number bonds and why do they matter?
Number bonds are pairs that make a given total, such as 6 and 4 making 10. Knowing them automatically is what allows mental addition of larger numbers, so they are worth practising until they are effortless.
How do I help a child who counts on their fingers?
Finger counting is a normal stage rather than a problem. It fades as number bonds become automatic, so practising those is more effective than discouraging the fingers.