Maths practice for 12-year-olds - page 88 of 355

Number of problems found: 7086

Cube edge volume
The surface of a cube is equal to 294 square meters. Calculate the edge and volume of the cube.
Mrs. Rivera
Mrs. Rivera bought 9 and 3/4 m of curtain cloth. She used 5 m to make a curtain for the office window. How many meters of cloth were not used? Simplify your answer.
Length in yds
Find the area of a rectangle with a length of 4 3/4 yards and a width of 1 1/16 yards.
The speed 2
The speed of an electric locomotive is 90 km/h. Express this speed in m/s.
A shoe
A shoe company sends out seven trucks loaded with nursing shoes, costing the company $1,572 per truck. If they send out 750 boxes per truck, what would be the profit if the cost per box is $ 125.40?
Susan 3
Susan has 90 sweets, 36 chocolates, and 60 jellies. She wants to pack the items equally into goodie bags without any leftover items. How many bags will she pack maximum? How many sweets, chocolates, and jellies will be in one bag?
Cube edge volume
Calculate a cube's surface area and edge if its volume equals 3375 cubic meters.
Conner
Conner picked 8 1/5 pounds of apples. Louisa picked 9 2/3 pounds of apples. How many apples, more pounds, did Louisa pick than Conner?
Sweaters 14
A store buys 14 sweaters for 84$ and sells them for 504$. How much profit does the store make per sweater?
A rectangular 8
A rectangular prism has a length of 10m, a height of 9m, and a width of 15m. What is its volume in cubic meters?
Which 13
Which numbers are perfectly divisible by 3? 45,904 40,404 145,083 16,674 75,035 (use sum of digits)
A reciprocal
What is the reciprocal for 4/3? ("RECIPROCAL" is the math word for when we FLIP a fraction...Example: the reciprocal of 3/4 is 4/3.)
Farmer
If a farmer plants 2 1/2 a year and the year is 2/3 over, how much has he planted?
Apple 30
Apple costs 0.98 per pound. How much will it cost to purchase 5.5 pounds of apples?
A farmer 5
A farmer has 220 apples. Each day he sells 14 1/8. How much does he sell in 5 days?
Same fractions
I remember that 2/2 is equal to 1. 3/3 is equal to 1. Where is the fraction 4/4 located on the number line?
Using money
Out of 575,000.00 given to a school, an amount of 25,000.00 was used. What fraction of the total amount was used?
A cone 2
A cone has a slant height of 10 cm and a square curved surface area of 50 pi cm. Find the base radius of the cone.
Joanne 2
Joanne bought five fish. To have enough space, fish must have at least 30 liters of water. You know that the length is 5 dm and the width is 3 dm. Calculate the minimum height of the aquarium.
LCM of three ints
Find the least common multiple (LCM) of three numbers: 50, 120, and 135.

Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.