# Calculator decimals and mixed numbers

### 1.5 - 1 1 / 5 = -0.7

Spelled result in words is minus zero point seven.### Calculation steps

- Divide: 11 / 5 = 2.2
- Subtract: 1.5 - the result of step No. 1 = 1.5 - 2.2 = -0.7

**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:

- Package

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

Suriani had 3.05 m of ribbon. She used up 0.76 m of it. What is the length of ribbon that she has left? - Jansen

Jansen had 1.3 litres of fruit juice. He drank 0.5 litres during lunch. How many litres of fruit juice does he have left? - Wire

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

Subtract mixed number with regrouping: 11 17/20- 6 19/20 - Purchase 3

Bailey had $5.67. She bought a bottle of water for $3.71. There was no sales tax on her purchase. How much money did she have after her purchases? - Mixed numbers

Rewrite mixed numbers, so the fractions have the same denominator: 5 1/5 - 2 2/3 - Latitude and longitude

A helicopter is flying from Hong Kong to Jakarta. The latitude of Jakarta is -6.20, and its longitude is 106.80. The latitude of Hong Kong is 22.27, and its longitude is 114.15. What is the helicopters net change in latitude and longitude as it travels fr - Expression 8

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

Brass cast weight was 3.84 kg, it had turned into piston weight 3.491 kg. How many grams of brass was turned off? - Simplify 3

Simplify mixed numerals expression: 8 1/4- 3 2/5 - (2 1/3 - 1/4) Show your solution. - Morning

Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep? - The tallest

The tallest building in the world used to be Taipei 101 in Taiwan. Its height is 0.509 km. The tallest building in North America used to be Sears Towers in Chicago, USA. Its height is 0.442 km. What is the difference in the heights of the buildings? - Colored blocks

Tucker and his classmates placed colored blocks on a scale during a science lab. The brown block weighed 8.94 pounds, and the red block weighed 1.87 pounds. How much more did the brown block weigh than the red block? - The Stolen Money

A man walks into a store and steals a $100 bill. 5 minutes later, he returns to the store and buys stuff worth $70. He pays with the bill that he had stolen, so the owner of the store returns him $30. How many dollars did the store owner lose? - About what

How much and how many times is 72.1 greater than 0.00721? - The temperature

The temperature at 1:00 was 10 F. Between 1:00 and 2:00, the temperature dropped 15F. Between 2:00 and 3:00, the temperature rose 3F. What is the temperature at 3:00?

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