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When we perform an operation in mathematics, it can be undone by performing an opposite or inverse operation. When you add two figures together this is addition. To undo what you have just done, you can subtract one number from the other . Subtraction undoes the addition, so this is th inverse...Read More

4 Answers

Make sure the negitve sign looks like one and not a mise sign

4 Answers

3 Answers

It would be -15 because adding -20+5 would = -15

2 Answers

-132 because its the only negative there

2 Answers

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