Estimate the position of multiples of ten on a 0 - 100 number line | Maths

Starter quiz

Say the count. What number will Laura say next?

'100' ✓
Say the count. Laura is counting backwards. What number will Laura say next?

'20' ✓
Look at this section of a 100 square. What number is hidden by the counter?

'10' ✓
Look at this section of a 100 square. What number is hidden by the counter?

'60' ✓
What number is the arrow pointing to on this number line?

'12' ✓
What is a good estimate for this number?

'13' ✓

What multiple of 10 is the arrow pointing to on this number line?

10

20 ✓

30

40
What multiple of 10 is the arrow pointing to on this number line?

'60' ✓
Which arrow shows the position of 80 on this number line?

a

b ✓

c
Which arrow shows the position of 30 on this number line?

a ✓

b

c
What is a good estimate for this multiple of 10 shown on the number line?

'20' ✓
What is a good estimate for this multiple of 10 shown on the number line?

'60' ✓

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Children may find it hard to draw their own number lines accurately.

Encourage children to mark the midpoint and equally space the numbers by using fingers or an object to space them out.

Estimate - To find a value that is close enough to the right answer, usually with some thought or calculation involved.
Number line - A line showing numbers in their correct positions relative to one another. It can be horizontal or vertical and can be marked or unmarked.
Multiple - A multiple is the result of multiplying a number by another whole number.