Math practice for 13 year olds - page 26 of 429
Number of problems found: 8564
- Sand castles
Hana's sand castle measures 19 feet by 15 feet and has a perimeter of 68. Thomas's sand castle measures 8 yards by 6 yards. What is the difference between the two perimeters? - A recipe 6
A recipe requires 2 cups of milk for every 3 cups of flour. If you use 8 cups of milk, how many cups of flour do you need? - An Airbus
An Airbus A380 has one first-class section, one business-class section, and 4 economy-class sections. The first-class section of the Airbus A380 has 14 seats, 5/7 are being used. The business-class section has 64 seats. 5/16 is being used. Each Economy-cl - Three angles
The three angles of a triangle are (3x-2)°, (4x+5)°, and (2x-3)°, then find the angles. - A craft
A craft store has a 9-yard spool of ribbon. In the morning, a customer buys 1/5 yd of ribbon. Another customer buys 7/10 yd of ribbon in the afternoon from the spool. How much ribbon is left? - Line equation:
Line equation: y-3=8/9(x-5) Solve for slope - The average 10
The average of three fractions is 2 3/8. If two of the fractions are 2 1/5 and 1 2/3, what is the total value of the three fractions? - Circular garden 2
What is the area of the circular garden if the diameter of the circular garden is 4 meters? - 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?
- Nelson
Nelson has a weekly salary of $445.86 and is self-employed. Use 7.51% for not self-employed and 12.3% for self-employed for the Social Security Tax. How much Social Security should be withheld? - 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?
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