Numbers - practice problems - page 9 of 310
Mathematics is the science of numbers and counting. The original numbers that began to be counted were natural numbers - one, two, three, and so on. To write numbers, we use the digits 0,1,2,3,4,5,6,7,8,9. We use 10 digits in the decimal system. We know different sets of numbers - whole numbers, real numbers, complex numbers. Fractions are the notation of rational numbers; you can also find them in our offer; even if it is not an extra set of numbers, they are prevalent in practice, so we made an additional category for them.Number of problems found: 6197
- Product, sum and quotient
If the product of 1 1/6 and 3 2/3 is added to the quotient of 5/7 and 6/7, what is the sum? Write the solution as a mixed number or a fraction in the lowest terms. - A biology
A biology experiment required pouring 2/9 liter of nutrient solution and 2/3 liter of pure water into a tank. At the end of the experiment, 3/10 liter of fluid had evaporated. How much fluid was left in the tank? - The temperature 42
The temperature in your town is 31°F. The radio announcer says that the temperature will drop by 15 degrees. What will the temperature be? Write an equation to show how you found your answer. - Mr.de
Mr. Guzman bought 7 1/2 kg of meat. He used 2 3/4 kg for afritada, 3 1/8 kg for menudo, and the rest for pochero. How many kilograms of meat did he use for pochero?
- Ciara’s
Ciara's father bought a big bar of chocolate at the grocery. He divided it into two equal pieces and gave one piece to Ciara. Ciara then shared her piece with her and her two friends. What fraction of the big bar of chocolate did one of Ciara's friends ge - The jeep
The jeep driver filled his tank with 12 3/4 liters of gasoline. If he uses 1 1/3 liters for each round trip, how many round trips can he make before re-filling? - Gemma 2
Gemma works in a bakery. She is making up family boxes of bakery goods. Each box needs 3 loaves of bread—three loaves in a box. If Gemma has 20 loaves of bread: a) How many family boxes can she make? b) How many loaves of bread are left over? - Library 4
Library A has a total collection of 250 books. Library B has 100 more books than Library A, and Library C has twice as many books as the combined number of books in Library A and B. What is the total number of books in libraries A, B and C? - Mother 16
Mother cooks food in 1 3/4 hours and prepares the children's snack in 4/6 of an hour. How much longer does she cook the food than prepare the children's snacks?
- Tie rope
Fred was learning to tie rope. He had 5 1/2 feet of rope. If each knot took up 4/5 of a foot of rope, how many knots could he make? - Aaron
Aaron filled the bird bath with 72 ounces of water. A group of bluejays came by and drank 6.19 ounces. Then, a vulture swooped in and drank twelve and three-fifths ounces of the water. How much water is left in the bird bath? - Mike withdrew
Mike withdrew $60 dollar sign, 60 from his bank account 3 times. What is the change in Mike's account balance after all 3 withdrawals? - Shandra
Shandra saved $24. She lends 1/3 of her savings to her brother. Shandra wants to buy an $18 bracelet. Will she have enough money to purchase the bracelet? Explain - Evaluate expression 10
Evaluate expression: (a-b)+c if a=7/10, b=3/5, and c=-1.9. Write your answer as a mixed number in simplest form.
- Your are
You are cutting as many 32 1/4-inch sections as you can out of a board that is 129 inches long. How many pieces can you get out of the board? - Dorothy
Dorothy feeds her dog during noon time with 2/5 kilograms of dog food and during night time with 3/7 kilograms of dog food. How much is dog food fed to her dog in a week? - An electrician 4
An electrician buys a 100 m length of 3 mm electrical cable. By the end of the week, he had used up 35.5 m of the total length. How much of the cable is left? - Katy bought
Katy bought 4/5 kg of oranges, 2 1/2 kg of bananas and 1 1/2 kg of apples everyday. How many kilogram of fruits did she buy each day. - Walnuts 2
There are 6 2/3 pounds of walnuts in a container, which will be divided equally into containers that hold 1 1/2 pounds. How many containers walnuts will fill?
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