Maths practice for 12-year-olds - page 276 of 300
Examples and word math problems for 7th grade.Number of problems found: 6000
- Jane
Jane buys gifts together for 464 SKK. She pays 4.5 times less for the tie than for the shirt, but 56 SKK more for the socks. Thus, she pays 464 SKK for each item in the gift.
- Athletes
Athletes are standing in rows of eight. Ivan estimated that there are more than 120, while Peter claimed that there are fewer than 130. Both are right. How many are athletes?
- The farmer field
The field has a parallelogram shape with dimensions side a = 75 m and height 372 m. Two and two sides are at an angle 75°. Calculate the acreage of the field in hectares.
- Parachutists
During freefall, parachutists were first held in groups of 4, then 6, then 9, 12, and finally 18 members. If each group must all be involved, how many parachutists must jump at least?
- Pocket
Miriam spent on a trip for half-pocket gifts, and for the third remaining money bought a bagel. Six euros left her. How many euros had Miriam in her pocket?
- Rhombus 2
Calculate the rhombus area with a height v=48 mm and shorter diagonal u = 60 mm long.
- Bicycle
The bicycle pedal gear has 36 teeth, and the rear gear wheel has 10 teeth. How many times does the rear wheel turn when the pedal wheel turns 120x?
- 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?
- 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.
- 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?
- 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.
- Manufacturer 1642
The manufacturer launched the Lenovo Z7-A laptop on the market for 490 euros. After the first month, the company reduced it by 10%, and after the second month, it was reduced by another 5%. How much cheaper could we have bought it two months after launch?
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