Subtracting 10 removes one group of ten from a whole number, leaving the ones value unchanged while reducing the tens value by one when no regrouping is needed. Within nonnegative numbers to 1,000, this relationship can be represented on a number line or through place value, including boundary cases such as ; it builds mental fluency with place-value changes and prepares for broader addition and subtraction.
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Detailed Explanation: Subtract 10 from a number
To subtract , take away one group of ten. The ones digit stays the same, and the tens digit becomes one less.
Example:
- Look at the tens and ones:
- has tens and ones.
- Take away ten:
- tens becomes tens.
- Keep the ones unchanged.
So,
You can also think of it as moving back spaces on a number line: becomes .
Learn by doing: Subtract 10 from a number
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Subtraction - Whole Number - Subtract 10 from a Number
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This Worksheet Includes:
- Subtraction - Whole Number - Subtract 10 from a Number
- Subtraction - Whole Number - Subtract 10 from a Number - Columns
- Subtraction - Whole Number - Subtract Multiples of 10
- Subtraction - Whole Number - Subtract Multiples of 10 - Columns
- Subtraction - Whole Number - Within 10
- Subtraction - Whole Number - Within 10 - Columns