Maths practice for 12-year-olds - page 104 of 348
Number of problems found: 6960
- Cancer - dies
One person dies from lung cancer in one and a half hours. How many people die every day? - Multiply 63734
What result do we get if we multiply 1/5 of 600 by three and divide the result by 1/10 of 100? - Each cement
Each cement block weighs 1 1/6 pounds. How much do three cement blocks weigh in total? How do you do this? - Comprises 63694
The 10m long bar comprises 4, 8, 3, and 6 equal parts. Express the length of one piece as a decimal number. - David 2
David poured orange juice into 7 cups. He poured 1/4 liter of orange juice into each cup. How many liters of orange juice did David pour altogether? - Combinations 63634
Jana has three blouses, red, blue, and white, and three skirts, blue, black, and brown. In how many days will all combinations of blouses and skirts change? - Practicing piano
Hoor spent 15 hours last week practicing piano. If 3/7 of the time was spent practicing warm-up routines, how much time did he spend practicing warm-up routines? - The temperature 24
The temperature at 04:00 was −3°C. By 09:00, the temperature had risen by 8°C. What was the temperature at 09:00? - Children's room
The children's room is a square with a side of 3m. What is the area of the room layout on a 1:50 scale plan? - Travels 63514
The cyclist travels 10 km per hour, car 60 km. The cyclist went for 3 hours. How many minutes does the same journey take to a car? - Quarter 63494
There were 15 apples in the basket. There were four fewer red apples than green ones and a quarter fewer reds than red ones. How many red apples were in the basket? - Garden - fence
The fence around the garden measures 360 m. Of these, 72 18/20 m are damaged and must be repaired. How many meters of fence is sufficient? - Remaining 63364
Juraj pays from a monthly pocket quarter for a snack, a fifth for drinks, and a third for technical details for a PC. He saves the remaining 13 euros. What's his monthly pocket money? - Gradually 63314
The fishery gradually sold carp weighing 2 1/2 kg, 1 5/6 kg, 1 3/5 kg, 2 1/10 kg, 2 kg, and 2 2/3 kg. What was the average weight of 1 carp? - Lengths 63174
The block has a square base of 36 dm2, and its height is 1/3 of the length of the base edge. Find the sum of the lengths of all edges of a block. - Hundredfold 63144
The length of the radius of the rotating cylinder base is 5 m. You calculate the radius of an equally high cylinder, the volume of which is a hundredfold. - Perimeter 63114
The perimeter of the regular octagon is 8u + 16 cm. Calculate the side if u = 0.5 cm. - Grandfather 63074
My only son was born when I was 37 years old. That was exactly 32 years after the death of my grandfather, and he died at the age of 64. Dedecek was 12 years older than Grandma; they got married in 1947, just when Grandma was 18 years old. What year was m - Hazelnuts 63054
Mom bought a mixture of nuts. It contains 0.2 kg of hazelnuts. 1/4 kg of cashew nuts and 2/3 kg of peanuts. How much did the whole mix weigh? - Number 63044
What number is under the letter D if: 88-A = 8 D = C: 10 B + 20 = A 5.B = C
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