Subtraction
Decimal subtraction
Subtract decimal numbers with configurable whole and fractional places while preserving decimal-point alignment.
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Subtracting decimals from whole numbers
Subtract decimals from whole numbers with up to four decimal places. Choose number ranges, optional trailing zeros, negative answers and 12–24 vertical problems.
Ready-made English PDF · fixed settings
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Fixed English ready-made files. Custom settings below apply only to the configured PDF.
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Start with a ready-made worksheet
Align the decimal places. If helpful, rewrite the whole number with decimal zeros. Subtract, regrouping as needed, and check whether the answer should be positive or negative.
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Use the generator to change the number ranges, precision, question count, seed or teacher note. A long note or translated instructions may add a page.
Learning objective
What this activity builds
Regroup a whole number across decimal places and subtract a decimal while keeping equivalent positions aligned.
Worked example
Calculate 8 − 3.047.
4.953
Rewrite 8 as 8.000. Regroup across the zero places and subtract 3.047. Check the result by adding 4.953 +3.047 =8.000.
Teaching notes
Make the practice count
- Use tenths and one-digit whole numbers first. The padding option makes the equivalent decimal form visible.
- Turn padding off when students are ready to supply the zeros themselves. The numbers and answers stay the same.
- Negative answers are off by default. Enable them only after signed subtraction is familiar.
- With negatives disabled, each selected number range must allow a valid subtraction. If the settings cannot do that, narrow the decimal range or allow negatives.
- Use the key to check exact place values, including a final zero. Numerically equivalent forms are acceptable unless a particular precision is requested.
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A useful next step
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