Maths practice for 12-year-olds - page 278 of 347

Number of problems found: 6932

Shots
Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
Evaluation
What is the result of the example (81¹/4): 4?
Pedestrian
Dana started at 10:00 from point A toward point B. The points are 12 km apart. Determine how fast Dana walked if she arrived at point B at 11:54. Express the speed in km/h.
Expression value
Find the value of the expression 9^x / 4y if x = 0.5 and y = 2.25.
Expression value
Specify the value of the expression: 1^-4:2^-3
Runner
Peter ran at a speed of 12.4 km/h. After 45 minutes of running, he had a hiatus. The track is 31 km long. How many kilometers is he still to run if he still runs at the same speed?
Price reduction
The goods became cheaper twice a row, first by 18% and then by 16% of the new amount. After this double reduction, it cost precisely 516 euros and 60 cents. Determine the flood amount of the goods.
Expression value
Express the value of y in the expression: y / 9^(- 1) = 72
Car distance
The car was traveling at a speed of 112.5 km/h. Determine what distance he would have walked in 144 minutes if he had kept going at the same pace.
Unknown number 17
Milada said, I am thinking of a number such that I evaluate expression x¹/3; the expression's value would be 5. Which number is Milada thinking?
Speed comparison
Damian drove 4 kilometers in 2.5 hours. Dasha drove 12 kilometers in 9.5 hours. Who went faster? 1) Damian 2) Dasha
Sprinter pace
The sprinter ran a distance of 500 meters in 61 seconds. How long would it take him to run a distance of 1,200 meters if he kept running at the same pace?
Exponent division
Determine the result: 3³:3⁴
Unknown number 4
I think number. When I divided its square root by its 1/9, I got a number 1. What number am I thinking?
Friends
James and Jerry are friends. Together they have 48 toy cars. If James takes eight cars from Jerry, Jerry would have 1.5 times as many toy cars as James. How many toy cars does each one have?
Four swords
Obelix has three helmets, four swords, and five shields. How many words must you make at the blacksmith forge Metallurgix to be able to walk another 90 days in unique armor?
Romans
The Romans managed to capture the druid Panoramix. Obelix wants to free him. He managed to put the jailer to sleep and take from him a bundle with a hundred keys. On the way to Panoramix, Obelix must open six doors. How much time at most does Obelix need
Fuel mileage
You have a 3/8 tank of fuel. Estimate fuel consumption at 6 mpg. Estimate speed at 50 mph. Your fuel tank holds 200 gals. Figure out fuel mileage.
Blueberries
Mike and Anthony have a total of 1,580 blueberries. Mike and Anthony have them in the ratio of 2:3. Determine how much each of them has.
Spain vs USA
Spain lost to the US by four goals. In the match, the total fell by ten goals. How many goals gave Spain, and how did the United States?

Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.