Onmatu- Pre-Algebra Article
Order of operations-lesson
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3+5×6, 2-5×3, 8+4÷2 and so on.
For the first expression, we get value 48 because we wrongly calculate it as:
3+5×6=8×6=48
we just go from left to right. But, we need to be careful here!!!
Operations have their order, and it is:
1. × and ÷,
2. + and -.
This means that we first do multiplication and division and after addition and subtraction. So, correct calculation of our expression 3+5×6 is:
3+5×6=3+30=33.
Similarly, we get that:
2-5×3=2-15=-13,
8+4÷2=8+2=10.
Hope this lesson helps. If not, feel free to write comments.