Algebra
Description
The best way to deal with them is: Solve the problem by yourself - compare your solution with the solution in the book (if it exists) - go to the next problem. Adding three apples to five apples is the same as adding five apples to three - apples do not disappear and we get eight of them in both cases.
Technical Details
author: | Олександр Шень |
pages: | 160 |
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