Find one more and one less

Home learning focus

More advanced than counting, finding one more and one less is knowing which number comes after and before a number between 1 and 100.

This lesson includes:

  • one video

  • four interactive activities

Learn

Watch the video below from BBC Teach. See Rodd test his rocket and help him count down from 10.

Add one or subtract one

To work out which number is one more than a number, you need to add one.

For example, 45 + 1 = 46

46 is one more than 45.

To work out which number is one less than a number, you need to subtract one.

For example, 45 - 1 = 44

44 is one less than 45.

The number line shows 44 is one less than 45 and 46 is one more than 45

Practise

Activity 1

The number square

Have a go at this fun activity from Teacher's Pet. Look at the number square on the worksheet below. Move your finger up and down the numbers on the number square to answer the questions.

Number square

Activity 2

Add the missing numbers

Click the activity below and type in the numbers. Can you get full marks?

Activity 3

Number robots worksheet

Print out this worksheet from Twinkl below and fill in the missing numbers which are one more and one less than the number on the robots. Or why not draw your own robots?

Number robots worksheet
document

Activity 4

Be the number robot

Now it's your turn to be the number robot! Look out for numbers around your home - shout out the number that is one more and one less! Numbers are everywhere, have a look for them on clocks, games, pictures you have drawn and your front door!

There's more to learn

Have a look at these other resources around the BBC and the web.

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BBC Bitesize Daily
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