Addition and subtraction involving zero | Maths | Quizalize & Oak National Academy

Starter quiz

How many children are on the bus?
- 5
- 6
- 7 ✓
- 8
How many children are on the bus?
- '0' ✓
Which expression matches the representation of yellow and red counters?
- 7 + 2
- 6 + 2
- 5 + 2 ✓
Which representation matches the expression 6 + 2 ?
- A
- B ✓
What is the missing part?
- 6
- 2
- 1
- 4 ✓
Sam had 9 pounds in her purse. She spends 7 pound on a new toy. How much money does she have left?
- 7 pounds
- 2 pounds ✓
- 5 pounds
- 0 pounds

Exit quiz

What is the missing number from this equation? 4 + ______ = 4
- 0 ✓
- 1
- 4
- 3
What is the missing number from this equation? ______ - 0 = 6
- 0
- 4
- 1
- 6 ✓
Which of these equations has a difference of 0?
- ______= 9 − 8
- ______ = 7 − 7 ✓
- ______ = 6 − 0
Match the equations to their solutions?
- 10 - 10 =
  
  ⇔
  
  0 ✓
- 10 - 0 =
  
  ⇔
  
  10 ✓
- 0 + 10 =
  
  ⇔
  
  10 ✓
- 0 + 0 =
  
  ⇔
  
  0 ✓
The teacher had a sheet of 8 stickers. By end of the day, they had given out 8 stickers. How many stickers does the teacher have left?
- 10
- 8
- 2
- 0 ✓
Sam went to the shop and bought a lollipop that costs 10 pence. She has 0 pence left. How much money did she take to the shop?
- 1 pence
- 0 pence
- 10 pence ✓
- 100 pence

Worksheet

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Lesson Details

Key learning points

When zero is added to a number the number, the number does not change.
When zero is subtracted from a number, the number does not change.
Subtracting a number from itself gives a difference of zero.

Common misconception

Children may think that adding or subtracting zero gives zero. For example, 6 + 0 = 0 or 4 - 0 = 0

Use manipulatives to help children see that adding or subtracting zero will not change the starting amount. Model this alongside the written equation so that they can see what each part is representing.

Keywords

Zero - Zero is the number that represents no amount or objects. When we add zero to a number, the result is just the number, unchanged.
Add - To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another.
Subtract - To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.
Same - The equal sign is used to show that the values on either side of it are the same.