Maths practice for 12-year-olds - page 279 of 349

Number of problems found: 6967

Identify 3828
Identify an unknown number whose 1/16 is 10.5, less than half of it.
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: (1024^0.1): 9
Cargo
The car with cargo weighs 7610 kg, which is 23% of its total weight and cargo. How heavy is the cargo?
Number 3797
Which number is hidden behind x: 2 · x = 16^0.5
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 x^0.5 = 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.
Evaluation
What is the result of the example (81¹/4): 4?
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.

Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.