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Year 1 Calculation - Subtraction
If I had 10 crayons and lost 3 of them, I'd only have 7 crayons left.

Year 1 Calculation - Subtraction

In KS1 Maths, subtraction means taking away to find how many are left. Use pictures, counters, and number lines to solve quick take-away problems.

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Fascinating Fact:

How many left means subtract. Ten balloons, 3 popped: 10 − 3 = 7 left. Oops, mind the prickly cactus.

In KS1 Maths, subtraction is taking away from a total to find what remains. Children use counting back, number bonds, and part whole models. Practise with our Subtraction Game and everyday take-away problems.

  • Subtraction: Taking a number away from a total to find how many are left.
  • Difference: The result you get when you compare two numbers by subtracting.
  • Number bond: Two numbers that fit together to make a total, like 7 and 3 make 10.
What does subtraction mean in Year 1?

Subtraction means taking away from a total to find how many are left. For example, 9 − 4 = 5 shows five left.

How can I help my child subtract at home?

Use snacks or toys to take away, count back on a number line, and practise easy facts like 10 − 6 = 4 during daily routines.

What is the difference in subtraction?

The difference is the answer to a subtraction. It tells how many more, or how many are left, after taking away.

Question 1
What is 15 - 8?
8
7
15
9
Imagine having 15 sweets and taking 8 of them away. 7 would be left
Question 2
What is 8 taken away from 17?
8
10
9
7
'Taken away' also means to subtract
Question 3
Zak has 18 marbles. Joe has 6 less than Zak. How many marbles does Joe have?
11
12
10
9
'Less than' means counting back or subtracting
Question 4
I have 15 crayons. I use 4 up and lose 5. How many do I have left?
6
7
8
9
'How many left' is a clue to this being a subtraction
Question 5
What is 4 less than 7?
7
4
3
47
Counting back 4 from 7 gets you to 3
Question 6
What is fifteen subtract four?
12
11
5
9
Subtract means taking away
Question 7
What is the difference between 7 and 12?
7
4
6
5
The difference between two numbers can be found by counting back from the highest to the lowest
Question 8
Sue buys 10 bananas. She eats 2 of them. How many are left?
8
6
2
7
'How many are left' is a clue that this is a subtraction question
Question 9
Sam has 12 toy cars. His brother takes 4 away. How many cars are left?
4
8
12
3
Taking away is another way of saying subtracting
Question 10
What is 8 subtracted from 11?
4
2
5
3
'Subtracted from' means to take away from
You can find more about this topic by visiting BBC Bitesize - What is subtraction?

Author:  Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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