Math practice for 13 year olds - page 25 of 421

Number of problems found: 8407

A ship 2
A ship runs at 15 1/2 knots (pls convert to nautical miles per hour) for 3 1/2 hours. How far does the ship travel?
I read
I read 24 pages of a book. Three-fifth part of the book is still left for reading. How many pages does the whole book have?
A book 4
A book has 280 pages. I read 2/7 of the book yesterday, while I read 1/4 of it today. How many pages did I read in 2 days?
Emily 2
Emily is thinking of a number, which she calls n. She finds 1/4 of the number and then subtracts 3. Write an expression to represent Emily's number.
Roberta
Roberta bought 9/10 pound of raisins. She put 2/5 pounds in bags for her lunch. How many 2/5-pound bags can Roberta fill? Does she have any left over?
Fely picked
Fely picked 4 1/2 bags of avocado at the farm. Each bag weighs 2 1/2 kg. How many kilograms of avocado did Fely pick?
Jason 4
Jason spent 1/2 of his money on paper and 1/3 of it on pencils. How much money did he start with if he had 15.00 left?
RST triangle
Find out if it is possible to construct the given triangle and according to which theorem: RS = 2.5 cm ST = 7 cm TR = 4.5 cm
FGH right triangle
Given a right triangle with leg lengths f and g, and hypotenuse h, if f = 7 cm and h = 11.2 cm, what is g?
The reciprocal 2
The reciprocal of 8 is subtracted from the reciprocal of 4, and the result is added to the reciprocal of 10. What fraction do you get?
A cube 3
A cube of edge 100 cm has the same volume as a cube of edge 1 m. how many cubic centimeters make 1 cubic meter?
A decimal number
I am a decimal number between 0.300 and 0.400. My hundredth digit is 3, and my tenth digit is 8. What number am I?
Difference of expressions
Find an expression that represents the difference when (3x+1) is subtracted from (-9x+1) in simplest terms.
A two 2
A two-wheeler covers 68.9 km in one liter of petrol. How much distance will it cover in 10 liters of petrol?
Evaluate 37
Evaluate the function K(x) = 2x²+3x-2 what is the value of K(½)
Sam's
Sam's age is x. His sister Jo is 2 years more than 1.1 times his age. Question: What is Jo's age in terms of x? Write an equation to find x if the sum of Sam's and Jo's ages is 44.
Full value
If 7 %=16000000, what will be 100%?
A retailer
A retailer buys an item for $2.16 and sells it for $2.70. What is the percent increase in price?
Wheat flour
If the cost of 1 kg of wheat flour is Tk 41 1/2, find the cost of 3 1/4 kg of wheat flour.
Multiplied and subtracted
When a number is multiplied by ⅔ and subtracted from 7, the result is 2⅓. What is the number?

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