Maths practice for 12-year-olds - page 76 of 350

Number of problems found: 6996

Paper rolls
The cost, c, of paper towels, based on the number of rolls, r, is given by this equation: c=1.29r What is the unit rate of the cost of the paper towels in dollars per roll?
Proportion 79414
There are 45 seats on the bus. Six passengers are standing, and the remaining 18 are seated. What fraction of passengers are standing? What proportion of passengers are seated? How many seats are unoccupied? How many people would have to be on the bus to
Three-eighths 79384
How much is two-sevenths of 420 less than three-eighths of 960?
Mr. Stratton
Mr. Stratton has a flower garden. Of the flowers in his garden, 1/3 of them are roses, and 3/5 of the roses are red. What fraction of Mr. Stratton's flowers are red roses?
Determine 79204
A lake with an area of 3 cm² is drawn in the 1:50,000 scale map. Determine the actual size of the lake.
Hamburgers 79184
Two sellers, each in their stand, sold hamburgers at the same price, expressed as a natural number in CZK greater than 30. The first seller received 1260 CZK, and the second received only 792 CZK. How much CZK did 1 hamburger cost? How many hamburgers did
Two fractions multiply
What is ⅔ × ⅚?
Bryon
Bryon has 1 7/10 kilogram of black pepper. He uses 7/8 of the pepper and splits it between 7 pepper shakers. How much pepper will be in each shaker?
Paul ate
Paul ate 2/8 of a cake and his brother 3/8. What fraction of the cake is left for the parents?
Fifteen 5
Fifteen more than five times a number equals the difference between -57 and three times the number. Find this integer number.
Value of a expression
Find the value 5(11)-10²-15+20
A box 5
A cereal box states that a 3/4-cup serving contains 90 calories. How many Calories are in 4 cups of cereal?
Rana bought
Rana bought 30 liters of gasoline for 575 l per liter. She also bought 3 kg of motor oil for 9.750 l. Find the total amount of money Rana paid in one step only.
June bought
June bought 3 1/2 gallons of white paint at $17.50 per gallon and 1 3/4 gallons of blue paint at $19.00 per gallon. What was her total cost?
Five-digit 78944
What is an even five-digit number whose digit sum is 44?
The circle
If the radius of a circle is 3+root3, what is the area?
Trapezoid 78904
Calculate the middle crossbar of a trapezoid whose area is 111.8 cm² and height 6.5 cm.
A sports
A sports tournament has "n" teams. Each team has 17 players. Using "n", write an expression for the total number of players.
Parallelogram-shaped 78784
The old woman crocheted 1 meter of lace. Will it be enough to edge a parallelogram-shaped table with dimensions 35 cm and 16 cm?
Prism-shaped 78774
How many hectoliters of water are in a rectangular prism-shaped pool if the top is 6m wide, the bottom is 4m wide, the pool is 2m deep, and the pool is 12m long?

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