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← Math

Adding and Taking Away

Easy⏱ 17 min
Colourful wooden counting blocks grouped together for adding and taking away
📷 Queensland State Archives · Public Domain

to the . The (+) add. For , 3 + 2 = 5. The to an is called the sum.

to how many are . The (−) . For , 5 − 2 = 3. is the of .

✨

You can add in any and get the : 2 + 3 is the as 3 + 2. Both 5! This is called the .

🔗 Match each sum to its answer.

  • 3 + 4

  • 9 − 5

  • 6 + 2

  • 8 − 3

💡

A : to the to add, and to the to .

A classroom number line used for counting on to add and back to subtract
📷 Brigban · CC0
Number line from 4 to 1345678910111213+ 4🐸11
Counting on to add: start at 7 and make 4 hops to the right to land on 11. So 7 + 4 = 11.

and are . If 4 + 3 = 7, then 7 − 3 = 4. one you out the other — they're a ! The 4, 3 and 7 make : 4 + 3 = 7, 3 + 4 = 7, 7 − 3 = 4, and 7 − 4 = 3.

🧩 Count on from 7 to add 4. Put the hops in order: 7 + 4 = ?

  1. Hop to 11 — the answer!
  2. Hop to 10
  3. Hop to 9
  4. Hop to 8
  5. Start at 7

💡

To add a big and a one, with the big and on. For 8 + 2, at 8 and '9, 10'.

to 10 are that add up to 10: 0 and 10, 1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5. these by makes much . For , if you know 6 + 4 = 10, then 16 + 4 = 20 too!

A ten frame filled with counters showing pairs of numbers that make ten
📷 Jan van der Heyden · Public domain
First numberSecond numberTotal
01010
1910
2810
3710
4610
5510
Number bonds to 10 — every pair makes the same total. Learn them by heart!

🃏 Flip a card to test your number bonds to 10.

Tap each card to see the answer.

For you can add the and the . For 23 + 14, add the (20 + 10 = 30) and the (3 + 4 = 7), then put them : 30 + 7 = 37.

Number line from 6 to 1467891011121314− 58🐰
Taking away works the same — but jump left. Start at 13 and hop back 5 to reach 8. So 13 − 5 = 8.

✍️ Fill in the maths words.

In 6 + 3 = 9, the , and the 9 is called the .

Quiz time! 📝

Adding and Subtracting Quiz

Question 1 of 5

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What is 3 + 2?

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