Free Subtraction PDF Worksheets & Answers
Grade 1 • Topic 1B| Resource | Questions | Answers |
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GCSE past paper questions & solutions
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Graded exam questions & solutions
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Practice Questions & answers
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Textbook Exercise & answers
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GCSE Maths Takeaway exam questions
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KS2 SATs questions & solutions
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GCSE topic booklet & answers
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PMT (Edxl)
Edexcel GCSE topic questions & solutions
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PMT (AQA)
AQA GCSE topic questions & solutions
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PMT (IGCSE)
Edexcel IGCSE topic questions & solutions
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Interactive 10-question revision grid
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Self-marking online worksheet
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Explanation:
To subtract whole numbers or decimals, write the larger number on top and line up the place values and decimal points vertically. When subtracting decimals of different lengths, insert placeholder zeros at the end so both numbers have the same number of decimal places.
Subtract each column from right to left. Never do “smaller take away bigger” by swapping the digits around; instead, borrow (exchange) 1 from the next non-zero column to the left, reducing that digit by 1 and adding 10 to your current column.
Example 1: Work out 5342 − 1658
Solution:
| 45 | 123 | 134 | 122 | |
| − | 1 | 6 | 5 | 8 |
| 3 | 6 | 8 | 4 |
Example 2: Work out 42.5 − 16.78
Solution:
| 34 | 112 | . | 145 | 100 | |
| − | 1 | 6 | . | 7 | 8 |
| 2 | 5 | . | 7 | 2 |