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An operation and a number's sign are different - Online practice 1
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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Start at -6 on a number line. Compare adding 9, adding its opposite -9, and subtracting -9. Adding a positive moves right; adding a negative moves left. Subtraction undoes addition of the subtracted number. A number's sign is not the same thing as an operation sign.
Worksheet preview
- Calculate -6 + 9 and -6 + (-9).
- Calculate -6 - (-9). Explain the direction of movement.
- Check the subtraction by adding -9 to your answer.
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