How do you evaluate #15 - 2 +12 \times 2#?
2 Answers
See below
Explanation:
Use order of operations PEMDAS
In this case, we multiply first
Now subtract
=
Explanation:
When doing calculations which involved different operations, identify the individual TERMS first.
Terms are separated by
Within each term, do:
- brackets first,
- then p0wers and roots
- then multiply and divide
Simplify each term to a single answer and then add or subtract them in the last step.
It is a good idea to write the adds at the beginning and the subtracts at the end.
(In this case is does not matter, but this helps to avoid errors in other examples)