Maths practice for 12-year-olds - page 322 of 350
Number of problems found: 6985
- Scale 3
Miriam's room is 3.2 meters wide. It is drawn by a line segment length of 6.4 cm on the floor plan. On what scale is the plan of the room? - Water level
How high is the water in the cylindrical barrel with a diameter of 12 cm if there is a liter of water? Express in cm with an accuracy of 1 decimal place. - Barrel 3
The barrel with water weighs 118 kg. When we get off 75% of water, it weighs 35 kg. How many kg has an empty barrel? - Wheels
A small tractor wheel with a diameter of 60 cm must be rotated eight times to overcome some pathways. How many times must you turn the big tractor wheel with a radius of 60 cm to overcome the same distance? - Mushrooms
For five days, we collected 410 mushrooms. Interestingly, we collected ten mushrooms more every day than the preceding day. How many mushrooms have we collected during the 4th day? - Divisible by 5
How many three-digit odd numbers are divisible by 5, which is in place of ten's number 3? - Vacation
Smiths paid a deposit for a vacation of two-sevenths of the total vacation price. They then also paid € 550. How much cost their vacation? - Raffle
How many raffle tickets must be purchased by Peter in a raffle with issued 200 tickets if he wants to be sure to win at least a third price? The raffle draws 30 prices. - Three-fifths 1651
Anna bought something for one-third of her savings. She spent three-fifths of the remaining money on her parents' gifts. She has 400 euros left now. How many euros did she save before spending? - Olympics
How many ways can six athletes be placed on the podium at the Olympics? Depends on the color of the metal. - Printing pages
The printer prints one page in 4 seconds. However, it warms up for 30 seconds before printing. Express how many seconds it will take to print 84 pages. - Mortgage
Family XY wants to take the bank mortgage (a loan for an apartment/house) for € 100,000. Bank processing the mortgage charges a fee of 0.79% of the amount borrowed. How many euros is this fee? - One-third
A one-third of an unknown number is equal to five times as great as the difference between the same unknown number and the number 28. Find the unknown number. - Timeage
Seven times my age is 8, less than the largest two-digit number. How old am I? - Jumps
At least how many jumps must a frog do to overcome the distance of 7 meters? The jump of a frog is 18 cm long. - Truck of milk
How many hectoliters of the box milk fit in the truck if the cargo size area is 2.8 m x 3 m x 17 m? A liter of milk in a box measuring 12 cm x 7 cm x 20 cm. - Briefcase
The cost of producing a briefcase is € 45. The manufacturer wants to sell it at a profit of 30%. How much will the briefcase sell for? - Obtuse angle
Which obtuse angle is creating clocks at 17:00? - Temporary 1637
Three temporary workers will clean 60 meters of the sidewalk in 5 hours. How many meters of sidewalk will clean by seven temporary workers in 8 hours? - The plan
Students have collected 48 kg of paper, which is 16% of the plan. How many kilograms of paper still have to collect to fulfill the plan?
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