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 More resources which follow the same small steps as White Rose. Did you like this resource? Don’t forget to review it on our website. © Classroom Secrets Limited 2018

An Introduction to Number Lines © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

An Introduction to Number Lines Are there any other numbers 25 is halfway between on this number line? 25 10 20 30 40 50 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 100. 50 is the midpoint on this number line. 10 20 30 40 50 60 70 80 90 100 © Classroom Secrets Limited 2018

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 100. 50 is the midpoint on this number line. 5 jumps 5 jumps 10 20 30 40 50 60 70 80 90 100 © Classroom Secrets Limited 2018

An Introduction to Number Lines Fill in the missing numbers. Then find the midpoint on the number line. 20 180 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

An Introduction to Number Lines 100 is halfway between 20 and 180. 100 is the midpoint on the number line. 20 40 60 80 100 120 140 160 180 © Classroom Secrets Limited 2018

An Introduction to Number Lines Fill in the missing numbers. Then find the midpoint on the number line. 5 55 © Classroom Secrets Limited 2018

An Introduction to Number Lines 30 is halfway between 5 and 55. 30 is the midpoint on the number line. 5 10 15 20 25 30 35 40 45 50 55 © Classroom Secrets Limited 2018

2 22 Find the midpoint on the number line. An Introduction to Number Lines Find the midpoint on the number line. 2 22 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

45 145 Find the midpoint on the number line. An Introduction to Number Lines Find the midpoint on the number line. 45 145 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018

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 © Classroom Secrets Limited 2018