Starter quiz
- Which of these is an even number?
- 9
- 1
- 3
- 4 ✓
-
- What comes next in the number pattern? 10, 8, 6, 4 ...
- 3
- 2 ✓
- 1
- 0
-
- What is the missing number?
- 4
- 5
- 6 ✓
- 7
-
- What is the missing number?
- 7
- 6 ✓
- 5
- 4
-
- Which bar model matches the equation 6 - 2 = 4
- Jun has 8 strawberries. He gives 2 to Sam. How many does he have left?
- 2
- 4
- 6 ✓
- 8
-
Exit quiz
- What is the next even number after 8?
- 6
- 8
- 9
- 10 ✓
-
- 4 and ______ are consecutive even numbers. Tick all possible answers.
- 5
- 6 ✓
- 2 ✓
- 8
- 3
-
- Consecutive even numbers ______ have a difference of two. Complete the statement.
- always ✓
- sometimes
- never
-
- Which of these equations have a difference of 2?
- 6 - 4 ✓
- 4 - 2 ✓
- 6 - 2
- 10 - 4
-
- What is the missing number?
- 12
- 10
- 8 ✓
- 6
-
- On Monday, the chicken laid 6 eggs. On Tuesday, it laid 2 fewer. How many eggs did it lay on Tuesday?
- 8
- 6
- 4 ✓
- 2
-
Worksheet
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Presentation
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Lesson Details
Key learning points
- Consecutive even numbers have a difference of 2
- We can use our knowledge to solve missing number problems when 2 is the known part.
Common misconception
Children may resort to counting strategies without noticing that the relationship between the minuend and the subtrahend is that there is a difference of two.
Draw out the patterns that will allow children to solve these equations without needing to using counting strategies. For example, 4 + 2 and 2 + 4 are 'even number after'; 6 - 2 is 'even number before' and 6 - 4 is 'difference of two'.
Keywords
Difference - The result of subtracting one number from another.
Even number - Any integer that can be divided exactly by 2 is an even number. The last digit is 0, 2, 4, 6 or 8
Consecutive - Numbers which follow each other in order, without gaps, from smallest to largest.
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