1. An Introduction to Number Lines
About This Resource:
This PowerPoint has been designed to support your teaching of number lines. It includes a variety of question types to introduce your pupils to the concept of number lines. You can choose to work through all examples provided or a selection of them depending on the needs of your class.
National Curriculum Objectives:
Mathematics Year 3: (3N4) Identify, represent and estimate numbers using different representations Mathematics Year 4: (4N4a) Identify, represent and estimate numbers using different representations
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2. An Introduction to Number Lines
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3. 10 20 40 50 70 90 100 This number line goes up in increments of 10.
An Introduction to Number Lines
This number line goes up in increments of 10.
Fill in the missing numbers on the number line. 10 20 40 50 70 90
100
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4. An Introduction to Number Lines
This number line goes up in increments of 10.
Fill in the missing numbers on the number line. 10 20 30 40 50 60 70 80 90
100
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5. 100 200 800 900 1000 This number line goes up in increments of 100.
An Introduction to Number Lines
This number line goes up in increments of 100.
Fill in the missing numbers on the number line.
100
200
800
900
1000
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6. An Introduction to Number Lines
This number line goes up in increments of 100.
Fill in the missing numbers on the number line.
100
200
300
400
500
600
700
800
900
1000
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7. 40 120 140 What increments does this number line go up in?
An Introduction to Number Lines
What increments does this number line go up in?
Fill in the missing numbers on the number line. 40
120
140
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8. 40 60 80 100 120 140 What increments does this number line go up in?
An Introduction to Number Lines
What increments does this number line go up in?
This number line goes up in steps of 20. We can tell by working out the difference between 120 and 140.
Fill in the missing numbers on the number line. 40 60 80
100
120
140
+ 20
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9. 60 120 What increments does this number line go up in?
An Introduction to Number Lines
What increments does this number line go up in?
Fill in the missing numbers on the number line. 60
120
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10. 30 60 90 120 What increments does this number line go up in?
An Introduction to Number Lines
What increments does this number line go up in?
This number line goes up in steps of 30. We can tell by working out the difference between 0 and 60, then halving it.
Fill in the missing numbers on the number line. 30 60 90
120
÷ 2
+ 60
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11. 20 30 40 50 60 70 Where would 35 be on this number line?
An Introduction to Number Lines
Where would 35 be on this number line?
What multiples of 10 come before and after 35? 20 30 40 50 60 70
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12. 20 30 40 50 60 70 Where would 35 be on this number line?
An Introduction to Number Lines
Where would 35 be on this number line?
What multiples of 10 come before and after 35?
35 is between the multiples 30 and 40. 35 20 30 40 50 60 70
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13. 10 20 30 40 50 Where would 25 be on this number line?
An Introduction to Number Lines
Where would 25 be on this number line?
What multiples of 10 come before and after 25? 10 20 30 40 50
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14. An Introduction to Number Lines
What multiples of 10 come before and after 25? Where would 25 be on this number line?
25 is between 20 and 30. 25 10 20 30 40 50
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15. An Introduction to Number Lines
Are there any other numbers 25 is halfway between on this number line? 25 10 20 30 40 50
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16. An Introduction to Number Lines
Are there any other numbers 25 is halfway between on this number line?
25 is halfway between 10 and 40. 25 10 40 50
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17. 50 Are there any other numbers 25 is halfway between?
An Introduction to Number Lines
Are there any other numbers 25 is halfway between?
25 is halfway between 0 and 50. 25 50
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18. An Introduction to Number Lines
25 is halfway between the start and end points on the number line. This means 25 is the midpoint on this number line. 25 50
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19. 10 20 30 40 50 60 70 80 90 100 What is the midpoint between 0 and 100?
An Introduction to Number Lines
What is the midpoint between 0 and 100? 10 20 30 40 50 60 70 80 90
100
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20. 10 20 30 40 50 60 70 80 90 100 What is the midpoint between 0 and 100?
An Introduction to Number Lines
What is the midpoint between 0 and 100?
Think about which number is halfway between 0 and 100. 10 20 30 40 50 60 70 80 90
100
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21. 10 20 30 40 50 60 70 80 90 100 What is the midpoint between 0 and 100?
An Introduction to Number Lines
What is the midpoint between 0 and 100?
50 is halfway between 0 and is the midpoint on this number line. 10 20 30 40 50 60 70 80 90
100
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22. 10 20 30 40 50 60 70 80 90 100 What is the midpoint between 0 and 100?
An Introduction to Number Lines
What is the midpoint between 0 and 100?
50 is halfway between 0 and is the midpoint on this number line.
5 jumps
5 jumps 10 20 30 40 50 60 70 80 90
100
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23. An Introduction to Number Lines
Fill in the missing numbers. Then find the midpoint on the number line. 20
180
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24. An Introduction to Number Lines
Fill in the missing numbers. Then find the midpoint on the number line.
The increments go up in multiples of 20.
160 ÷ 8 = 20 20
180
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25. An Introduction to Number Lines
100 is halfway between 20 and is the midpoint on the number line. 20 40 60 80
100
120
140
160
180
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26. An Introduction to Number Lines
Fill in the missing numbers. Then find the midpoint on the number line. 5 55
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27. An Introduction to Number Lines
30 is halfway between 5 and is the midpoint on the number line. 5 10 15 20 25 30 35 40 45 50 55
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28. 2 22 Find the midpoint on the number line.
An Introduction to Number Lines
Find the midpoint on the number line. 2 22
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29. 2 12 22 Find the midpoint on the number line.
An Introduction to Number Lines
Find the midpoint on the number line. 2 4 6 8 10 12 14 16 18 20 22
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30. 2 12 22 Find the midpoint on the number line. The midpoint is 12.
An Introduction to Number Lines
Find the midpoint on the number line. The midpoint is 12. 2 12 22
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31. 45 145 Find the midpoint on the number line.
An Introduction to Number Lines
Find the midpoint on the number line. 45
145
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32. 45 95 145 Find the midpoint on the number line.
An Introduction to Number Lines
Find the midpoint on the number line. 45 55 65 75 85 95
105
115
125
135
145
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33. 45 95 145 Find the midpoint on the number line. The midpoint is 95.
An Introduction to Number Lines
Find the midpoint on the number line. The midpoint is 95. 45 95
145
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