Take away 12 and 5 from 34.
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Addition and subtraction questions can be in words.
There were 34 carrots growing in the school garden. Zofia picked 12 carrots. Carys picked 5 carrots. How many carrots were left?
- Read the question and read it again. What do you have to do?
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- * How many carrots were there to start with?
* How many carrots were picked out altogether?
* Write a number sentence to match the question.
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34
12 + 5 = 17
34 – 17 =
- * Put the numbers into columns.
* Subtract the ones.
* Subtract the tens.
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Remember to put the bigger number on top.
| Tens | ||
| ²3 | ¹4 | |
| – | 1 | 7 |
| 7 |
You can't take 7 from 4.
So you need to take a 10 from the tens column.
14 – 7 = 7
| ²3 | ¹4 | |
| – | 1 | 7 |
| 1 | 7 |
20 – 10 = 10
- What is your answer?
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17
- Check your answer.