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Published byCandace Barrett Modified over 9 years ago

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Column Method for Subtraction

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Steps to success 1.Put the largest number on top. 2.Place the digits in the correct column. 3.Show the subtraction and equal sign. 4.Exchange and then subtract the top number from the bottom number in the units column. 5.Subtract the top number from the bottom number in the tens column. Exchange if you need to.

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Solve 48 - 26 = …. H T U 4 8 2 6- 2 2 H T U

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Solve 65 – 29 = H T U 6 5 2 9 36 1 5 - 1.Put the largest number on top. 2.Place the digits in the correct column. 3.Show the subtraction and equal sign. 4.Exchange and then subtract the top number from the bottom number in the units column. 5.Subtract the top number from the bottom number in the tens column. Exchange if you need to.

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Solve 243 – 29 = …. H T U 2 4 3 2 9 14 1 3 - 2 1.Put the largest number on top. 2.Place the digits in the correct column. 3.Show the subtraction and equal sign. 4.Exchange and then subtract the top number from the bottom number in the units column. 5.Subtract the top number from the bottom number in the tens column. Exchange if you need to. 6.Subtract the top number from the bottom number in the hundreds column.

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What you need to do : Solve the sums and show your working outs in your maths book. Use the steps to success to help you. If you are finished… try circle sums.

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Extension activity: Circle sums 1234512345

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Plenary Apply column method for subtraction to this: 3752 – 631 = …. Th H T U 5435 – 2122 = ?1435 – 326 = ?

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