Additive and Multiplicative Inverses
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Additive and Multiplicative Inverses
Inverses worksheet: write the additive inverse of integers such as −7, so that the sum is 0, and the multiplicative inverse of whole numbers and fractions, so that the product is 1. Grade 6, with an answer key.
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- Skill
- Integers Worksheets
- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Place positive and negative numbers on a number line, compare them and find absolute value, then add, subtract, multiply and divide integers, using the number line and the sign rules.
Reviewed by Mr. Daniel Carter, Teacher. How we check worksheets
How to use this sheet
- Keep a number line from −20 to 20 beside the sheet for every problem the child is unsure of.
- Have the child say the problem as a story, such as the temperature or money owed.
- For multiplying and dividing, have the child decide the sign first, then work out the number.
Common mistakes
- Thinking −8 is greater than −3 because 8 is greater than 3. On the number line, −8 is further left, so it is less.
- Using the multiplying sign rule for adding, so −3 + −5 becomes 8. Two negatives added make a bigger negative: −8.
- Dropping the sign when subtracting a negative, so 4 − (−2) becomes 2. Subtracting a negative is adding: 6.
