Maths practice for 12-year-olds - page 243 of 307
Number of problems found: 6128
- Equation
Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
- Numbers 3819
Change the numbers 48, 27, and 36 in a ratio of 5:3.
- Equals 3812
What is the ratio of 28:2-5 equal?
- Expression: 3804
Specify the value of the expression: (10240.1): 9
- Cargo
The car with cargo weighs 7610 kg, which is 23% of its total weight and cargo. How heavy is the cargo?
- Two rulers
We have two rulers. The scale interval on the first ruler is spaced 1 cm, and on the second is 15 mm. Rulers are attached to match the initial divider commas. What next dividers commas coincide? Find at least three cases.
- Amount 3791
X + Y = 31835 X is the amount stolen by 1,2 and 3 Y is the amount stolen by 4 and 5 1. stole half of X, 2. half the rest and 3 more on top of that 3. stole 6801.5 4. He stole 1/9 of Y, which is 513 5. He stole the rest
- Average speed
Michal left the house by car at a 98 km/h speed. He came into the goal place for 270 minutes. Determine the distance between the two places.
- Hazelnuts 3786
Denis eats 12 hazelnuts in 1 day. How many more hazelnuts must he eat a day to eat 57 hazelnuts in 3 days if he ate the same amount of nuts every day?
- Determine 3782
Determine the value of x if x0.5 = 6
- Together 3781
Milos would do the work himself in 5 hours. How much would it take Dan to do the job together in two hours?
- Weightlifter
Weightlifter lifted 75% of its weight. Determine how much weight is lifted when he weighs 132 kg.
- Shots
Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
- Pedestrian
Dana started at 10:00 from point A to point B. These points are 12 km away. Determine how fast Daniel went when place B arrived at 11:54. Speed express in km/h.
- Painting rooms
If Daniel paints for three hours daily, he completes it in 7.5 days. How many hours a day would he have to work to finish the job 1.5 days earlier?
- Grass
Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take for Peter if Stano lawn grasses himself for 384 minutes?
- Expression 3764
Find the value of the expression 9^x / 4y if x = 0.5 and y = 2.25.
- Expression: 3761
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?
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