KwickClips C · 43 sec · free
Why is 20 - 5 - 3 equal to 12?
Short answer. Same level, so it goes left to right.
How do you force + first?
Use brackets: (2 + 3) * 4.
Remember
| * / % before + - |
| Same level: associativity |
| Brackets beat both |
Two plus three into four. Twenty or fourteen? Fourteen. Multiply goes before plus. Same level? Go left to right, so twenty minus five minus three is twelve. Multiply before plus. Same level uses associativity. Brackets beat both.
This clip is from the full lesson: Operators and Expressions in C — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: GSEB Std 10 Computer Studies, Programming All levels C, Programming All levels C, Programming All levels C
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