decrease

• Taking one number or amount away from another.
• This is the opposite of addition.
• Decrease, subtract, subtraction and take away are interchangeable terms.



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Example




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Download information sheets

• Finding the difference:addition and subtraction (PDF)
• Adding and subtracting using an empty number line (PDF)
• Subtraction: jump strategy (another way to subtract) (PDF)
• Addition and subtraction mental strategies (doing maths in your head) (PDF)
• Split strategy (PDF)
• Addition: adding and subtracting vertically (and trading) (PDF)



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Subtraction using an empty number line



 



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Subtraction using the hundreds chart



 



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Vertical algorithm for subtraction



 



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Vertical algorithm for decimals: Subtraction



 



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Related words

• addition
• jump strategy
• mental strategy
• empty number line
• split strategy