Maths practice for 12-year-olds - page 107 of 362
Number of problems found: 7227
- Earning 4
You earn $8 for 2/3 hours of work. How much do you earn per hour?
- Project 62074
A 3.5 cm-long line shows the 350 m-long road on the plan. What is the project's scale?
- The crane
The construction crane has a 20m long arm. What construction area in ares can it handle from this crane if it rotates around its axis?
- Ron went
Ron went to the store with 100.00. he bought two belts for 14 each, three shirts for 15 each, and he bought a pair of jeans for 25. how much did he have left?
- The cost
The cost of 5 1/2 of the milk is 4 euros. How will 4 5/7 of milk?
- Circumference 61944
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km.
- Centimeters 61934
How much pressure on the rails will cause an empty truck weighing 20 tons if the contact area of all wheels and rails is 16 square centimeters?
- Pavlína 61874
Three girls have CZK 1,780. Pavlína had 1/3, Eva had 100 CZK less, and Hanka has x CZK. How much money did each girl have?
- A pack
A pack of 8 sports drinks costs $5. How much would it cost to buy 72 sports drinks?
- Apples 19
Joseph harvested 5 ¾ kg of apples from his garden. He sold ½ of it to his neighbor. How many kgs were sold?
- Gross profit
Joseph sold the following quantities of kerosene in gallons: 3/4, 5/8, 7/8, and 9/10. How many gallons of kerosene did Joseph sell? How much was his gross profit if a gallon costs P28.00 and he sold it at P32.00?
- Rocks
Dana loves rocks! She has six pieces of granite, three pieces of marble, 14 pieces of sandstone, and one piece of slate. What is the ratio of sandstone pieces to marble in Dana's collection?
- Circumference of a circle
Calculate the area of a circle if its circumference is 21.98 dm. Express the result in square decimetres.
- The cyclist - avg speed
The cyclist make a distance of 25 km at an average speed of 20 km/h. How long did the trip take him (in hours and minutes)?
- Integers 61684
How many integers are less than 74 and greater than -49?
- Salaries
The employer increased the salaries of its three employees by an average of 30 euros. One increased his salary by € 20, the other by € 45. How many euros did he raise the salary of a third employee?
- Hectoliters 61664
There are 1.5 hectoliters of rainwater in the barrel. Two-fifths of the water passed from the barrel while watering the garden. How many liters of water remained in the barrel?
- Create 2
Create word problems based on the given number sentence (300/24) - (207.60/24) = N.
- Price discount
The original price of a pen is 9 1/5 dollars. Any purchase of 5 pens needs only 7/10 of the original price. How many dollars should be spent to buy five pens?
- Electrical 61534
A current of 5 mA flows through a resistor with an electrical resistance of 600 Ω. What electrical voltage do we measure between the resistor terminals?
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