# 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.

## Decimals in word problems:

- Adding mixed 3

Why does 1 3/4 + 2 9/10 equal 4.65? How do you solve this? - Fraction

Fraction ? write as fraction a/b, a, b is integers numerator/denominator. - Decimal to fraction

Write decimal number 8.638333333 as a fraction A/B in the basic form. Given decimal has infinite repeating figures. - Wire

From wire 53 meters long they cut of 12.1 m and then 13.1 m. How many meters of wire left? - Andy had

Andy had $5.95 in his pocket. His father gave him another $3.55. How much does Andy have altogether now? - Time

Write time in minutes rounded to one decimal place: 3 h 48 m 45 s. - Addends

Number 839 divide into the two addends that the first was 17 greater than 60% of the second. Determine these addends. - Fruits 2

An apple costs 7p and a melon costs seven times more. How much will 6 apples and 2 melons cost - A dolphin

A dolphin was swimming 17 meters below the surface of the ocean. It located a squid and dove down 4 more meters to eat it. What is the location of the dolphin now relative to the surface? - Alice 2

Alice is swimming 2.5 hours every Saturday and 3.5 hours every Sunday. How many hours does she swim in 4 weeks? - Relay-race

Kate ran 170 meters at 29.8 seconds, Suzan at 29.3 seconds, Roza at 34 seconds and Žofka at 30.4 seconds. How long took to run 4x170 m relay-race? - Expression 8

Evaluate this expressions: a) 5[3 + 4(2.8 - 3)] b) 5×(8-4)÷4-2 - David number

Jana and David train the addition of the decimal numbers so that each of them will write a single number and these two numbers then add up. The last example was 11.11. David's number had the same number of digits before the decimal point, the Jane's numbe - Submerging

Monika dove 9 meters below the ocean's surface. She then dove 13 meters deeper. Then she rose 19 and one-fourth meters. What was her position concerning the water's surface (the water surface = 0, minus values = above water level, plus = above water level - Homework

The monthly fee for the phone is 12 USD and for phone unit 0.08 USD. How much family pay phone in the first quarter Q1, if on January 1 had on the counter 97362 units and on April 1 97946 units. - Evaluate

The division of numbers 18 and 6 increase by product of the numbers 156 and 0.001 - Store

One meter of the textile was discounted by 2 USD. Now 9 m of textile cost as before 8 m. Calculate the old and new price of 1 m of the textile.

next math problems »