# Calculator parenthesis

### 3 + 7{4 + 3[2-(8 - 4)×3] + 5}×2 = -291

Spelled result in words is minus two hundred ninety-one.### Calculation steps

- Subtract: 8 - 4 = 4
- Multiple: the result of step No. 1 * 3 = 4 * 3 = 12
- Subtract: 2 - the result of step No. 2 = 2 - 12 = -10
- Multiple: 3 * the result of step No. 3 = 3 * (-10) = -30
- Add: 4 + the result of step No. 4 = 4 + (-30) = 4 - 30 = -26
- Add: the result of step No. 5 + 5 = -26 + 5 = -21
- Multiple: 7 * the result of step No. 6 = 7 * (-21) = -147
- Multiple: the result of step No. 7 * 2 = -147 * 2 = -294
- Add: 3 + the result of step No. 8 = 3 + (-294) = 3 - 294 = -291

**order of operations**. The most common mnemonics for remembering this order of operations are:

**PEMDAS**- Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

**BEDMAS**- Brackets, Exponents, Division, Multiplication, Addition, Subtraction

**BODMAS**- Brackets, Of or Order, Division, Multiplication, Addition, Subtraction.

**GEMDAS**- Grouping Symbols - brackets (){}, Exponents, Multiplication, Division, Addition, Subtraction.

Be careful, always do

**multiplication and division**before

**addition and subtraction**. Some operators (+ and -) and (* and /) has the same priority and then must evaluate from left to right.

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