Subtracting + rational numbers - math problems
Number of problems found: 19
- Expression 8
Evaluate this expressions: a) 5[3 + 4(2.8 - 3)] b) 5×(8-4)÷4-2
- About what
How much and how many times is 72.1 greater than 0.00721?
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep?
- Mixed numbers
Rewrite mixed numbers, so the fractions have the same denominator: 5 1/5 - 2 2/3
Subtract mixed number with regrouping: 11 17/20- 6 19/20
- 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?
From wire 53 meters long they cut of 12.1 m and then 13.1 m. How many meters of wire left?
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?
- 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?
The package was 23 meters of textile. The first day sold 12.3 meters. How many meters of textile remained in the package?
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?
- 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?
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
- Five pumps
Three same pumps fill the tank with 50400 liters of diesel in 7 hours. How many liters of diesel will it take in 4 hours if we add two more of the same pumps and pump them the same way? How much more (or less) will they get if we add 2 of the same pumps a
- 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?
- Simplify 3
Simplify mixed numerals expression: 8 1/4- 3 2/5 - (2 1/3 - 1/4) Show your solution.
- 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?
- 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
- 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?
Subtracting Problems. Rational numbers - math problems.