Finding the difference between pairs of multiples of 10, 100 and 1000 as well as subtracting from whole 1000s are introduced in Year 4. Children are expected to use their knowledge to rapidly subtract single digit numbers as well as taking away 2-digit numbers. Written subtraction is introduced, including crossing the tens and hundreds boundaries, in preparation for using the standard written method.

Subtracting a single digit from a 3-digit number, starting with multiples of 100.

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5 pages

Subtracting a single digit from a multiple of 1000. Then, moving on to subtracting two numbers just either side of the thousands boundary. They look tricky but are easy if you ‘count on’.

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5 pages

Mental addition and subtraction of 2-digit numbers. These are about as hard as you would expect to get without using written methods.

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3 pages

A reminder that subtraction is the inverse of addition, and how this can be useful when working out mental calculations.

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5 pages

Can you say which of these are true and which are false? A quick test of the relationship between addition and subtraction and what effect zero has.

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3 pages

Problems in words. Not too tricky, but ask how they were done as this reveals a great deal about children’s thinking.

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6 pages

More adding and taking away 19, 29 etc. Easy if you know how!

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7 pages

Using the standard method to subtract 2-digit numbers.

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5 pages

The standard written method for subtraction. All these are 3-digits take away 2-digits and all cross the tens boundary.

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3 pages

The standard written method for subtraction, crossing the hundreds boundary. Remember that all working out should be shown.

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3 pages

More on the standard written method of subtraction, with zeros in the tens column which can cause difficulties.

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3 pages

More subtraction using the standard written method.

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4 pages

Using the standard written method of subtraction, with regrouping the tens and hundreds.

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4 pages

Written subtraction, regrouping the thousands and hundreds)

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4 pages

More written subtraction of 4-digit numbers.

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3 pages

More Written Subtraction of 4-digit Numbers with zeros.

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3 pages

Solve subtraction word problems. They should be answered by using the standard written method.

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3 pages

Tips on different ways that answers can be checked: essential if you are using a calculator.

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4 pages

More ways of checking answers, including thinking of an equivalent sum and doing an approximate sum.

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5 pages