In this activity, we will carry out simple subtractions by counting back.
Examples
Work out the subtractions.
500 - 6 = ____
5,000 - 6 = _____
Answers
To work out 500 - 6, we count back from 500 to get 494
To work out 5,000 - 6, we count back from 5,000 to get 4,994
Don't worry that these are big numbers - drawing just a part of a number line will help you to picture what you need to do.
Let's practise this in the questions that follow.
View the activity introduction for more information on the topic
Read the question aloud
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Question
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Teacher explanation