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KwickClips Cyber Safety and Ethics · 43 sec · free

What is (2 + 3) * 4?

Short answer. 20.

What runs first, * or +?

*.

Remember

Brackets first
* / % before + -
Same level: left to right

Is two plus three times four equal to twenty? No. Multiply runs before add. Three times four is twelve. Twelve plus two is fourteen. Brackets change the order. Brackets first. Multiply and divide before add. Same level, left to right.

This clip is from the full lesson: C++ Tokens, Data Types, Variables and Operators — 8 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: NIOS Senior Secondary Computer Science (330), Programming All levels C++, Programming All levels C++, Programming All levels C++

More KwickClips from this lesson

Table: int 45 4 bytes, double 3.5 8 bytes, char A 1 byte, bool true 1 byte.Which type stores 3.5?41 secC++ code int runs = 48; const int SIX = 6; cout runs + SIX, output 54.Can a const change later?40 secC++ code std::cout << (double) 7 / 2; output 3.5.What is implicit conversion?40 sec
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