# Decimal calculator

**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.

#### Examples:

• addition of decimals: -1.5 + 2.45• multiplying decimals: 0.25 * 0.2

• division of a decimals: 5.2 / 0.5

• parenthesis: 3 + 7{4 + 3[2-(8 - 4)×3] + 5}×2

• 2nd power and order of evaluation: 6^2-(2*7+4^2)

• cube root: cuberoot(27)

• Convert fraction to a decimal: 3/4

• decimals and mixed numbers: 1.5 - 1 1/5

## Decimals in word problems:

- Expanded form

What is the expanded form of 0.21? - Rolls

Mom bought 13 rolls. Dad ate 3.5 rolls. How many rolls left when Peter yet put two at dinner? - Ratio

Increase in the ratio 20:4 number 18.5. - Lowest terms

Reduce to the lowest terms: 32/124 - Ratio v2

Decrease in the ratio 12:16 number 13.2. - Whole numbers

Pavol wrote down a number that is both rational and a whole number. What is one possible number she could have written down? - Tenths digit

For 10.932, which digit is in the tenths place? - Package

The package was 23 meters of textile. The first day sold 12.3 meters. How many meters of textile remained in the package? - Lidl calculator

We don't like to advertise unnamed retail chains. But offers relatively high-quality scientific/technical calculator OLYMPIA 8510S with 97 functions(features) for 3.48 Eur. Calculate how many cents costs one feature of this calculator. We believe that eit - Mixed numbers

Rewrite mixed numbers so the fractions have the same denominator: 5 1/5 - 2 2/3 - A number

A number increased by 7.9 is 8.3 - Insert 3

Insert five arithmetic progression members between -7 and 3/2. - To improper fraction

Change mixed number to improper fraction a) 1 2/15 b) -2 15/17 - Andy had

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

Parcel from U.S. to Slovakia costs 5.3 €. Parcel from Slovakia to the U.S. costs 49 €. Calculate how many times is Slovak Post more expensive than the U.S. parcel service. - Dinesh

Dinesh ate 3 cookies, each with mass 1.45 g. What was the total mass of the cookies that he ate? - Arble bag

A marble bag sold by Rachel's Marble Company contains 5 orange marbles for every 6 green marbles. If a bag has 35 orange marbles, how many green marbles does it contain?

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