# Find error in calculation

Sally's calculations are as follows 39-9×4+12

=30×16

=480

What are the errors in this calculation?

=30×16

=480

What are the errors in this calculation?

## Correct answer:

**Showing 1 comment:**

**Dr Math**

See our decimal calculator:

https://www.hackmath.net/en/calculator/decimal?input=39-9%C3%974%2B12

Sally has an error; she firstly subtracted and added and then multiplied operands. The math problem is about the order of operations without brackets. Multiply first, then add and subtract.

https://www.hackmath.net/en/calculator/decimal?input=39-9%C3%974%2B12

Sally has an error; she firstly subtracted and added and then multiplied operands. The math problem is about the order of operations without brackets. Multiply first, then add and subtract.

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