Maths practice for 12-year-olds - page 99 of 353
Number of problems found: 7043
- Rod ratio division
How do you divide a 3 m long rod in a ratio of 1:5? Specify the length of both parts in cm. - Car kinetic energy
The car weighs 1850 kg and increases its speed from 27 to 81 km/h. How much has its kinetic energy increased? - Angle complement determination
Determine the angle ϕ: ϕ + 71 ° 15 '= 90 ° - Hands coincide
In how many minutes after the second hour do the clock hands coincide? - Plot fence comparison
How many meters is more mesh needed to fence a plot of parallels with dimensions of 50 m and 40 m than to fence a plot of diamond-shaped land, the side of which is 40 m long? - Steel bar cutting We must cut three steel bars with 24 dm, 3 m, and 160 cm lengths into equal lengths. Find their maximum length and number.
- Hexagon angle size
Determine the size of the ACF angle in the regular ABCDEF hexagon. - Laura bike route
Laura went for a new bike ride. In an hour, her father followed her on the same route at 60 km/h speed and overtook her in 1/2 hour. a) Find the length of Laura's route in kilometers before her father catches up with her. b) Determine in kilometers per ho - Calculate radius
The surface of the sphere is 624 cm². Calculate its radius. - The product
If the product of two numbers is 108025 and one of the numbers is 25, then the other number is: - Three-digit digit sum
How many three-digit numbers have a digit sum of 6? Write the ratio of the number of created even and odd numbers and adjust it to the basic form. - A landscaper 2
A landscaper has 1/8 ton of dirt. She distributes it equally across two plots of land. What fraction of the dirt does each plot get? - Bathroom tile area
My neighbors are remodeling their apartment. My neighbor let me see her new bathroom. It is a rectangle with dimensions of 2 m and 2.5 m. It has a bathtub with dimensions of 150 cm and 60 cm. The rest of the floor is covered with beautiful tiles. How many - Mandarin bowl initial
When the lion took two mandarins from the bowl and Millie took one-fifth of the rest, four mandarins remained in the bowl. How many tangerines were initially on the dish? - One ticket
If I sold 50 tickets and got paid 70$, How much was the ticket? - Evaluate 23
Evaluate expression: 2 less than the quotient of 7 and 3 - Baking a cake
Christy is baking a cake with a 9-inch diameter. She wants to cover the top with buttercream icing. How much icing will she need? - A train
A train can travel 1136 miles in 4 hours. What is the unit rate at which this train travels per hour? Write in miles per hour. - Kyle bought
Kyle bought x candy bars. He paid $0.89, including tax, per candy bar. He gave the cashier $10 and received $3.77 in change. How many candies did Kyle purchase? - Car opposite speeds
From cities A and B, which are 50 km apart, two cars set off in the same direction simultaneously with average speeds of 80 km/h and 120 km/h. How long will the faster car reach, the slower one, and at what distance from city A?
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