Ask Question
12 December, 05:12

Suppose you cannot remember the answer to 15-8=7. What could you do to solve?

+4
Answers (2)
  1. 12 December, 06:45
    0
    Calculate either in your head or on a paper what plus 8 equals 15, you can solve it easily this way. It is probably easier to do in your head (9, 10, 11, ...), continue on and make sure to remember how much is the sum.
  2. 12 December, 06:58
    0
    You can think in reverse. Addition is the opposite of subtraction. So to solve 15-8, you can ask "8 plus what number is equal to 15?" and note how 8+7 = 15. So that's why 15-8 = 7. Similarly, 15-7 = 8 can be solved the same way.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Suppose you cannot remember the answer to 15-8=7. What could you do to solve? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers