Maths practice for 12-year-olds - page 242 of 347
Number of problems found: 6923
- Rabbit hay
Twenty rabbits have hay for 60 days. For how many days will five rabbits have them? - Steps Length Corridor
A mature man, whose step is 3/4 m long, crossed the corridor 46 steps. How many steps will a boy with 60 cm long steps take her? - Five pumps
The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with five same pumps? - Cylinder-shaped vase
If the cylinder-shaped vase is filled with water up to 35 cm, it contains 1 liter of water. How much water will it contain if it is filled to a height of 45cm? - Olda wanted
Oldrich wanted to enlarge the 9 cm x 13 cm photo so that the shorter side measured 18 cm. How big will the longer side of the photo be? - Volume of cone
Find the volume of a right circular cone-shaped building with a height of 9 m and a radius base of 7 m. - Twelve
Twelve students work on a week forestry brigade. One hundred spruces will receive x CZK, one hundred pine y CZK. How many receive each student in one day if they planted a total of 25,000 spruces per week and 30,000 pine trees? Express by expression. - Halves of Fractions Tenfold
What is half of 3/8 and 9/4? And write ten times bigger numbers. - Pupils' exercise
On part of the school playground there are embedded markers. Neighbouring markers are 60 cm apart from each other and form a square grid. The teacher said: line up on the markers in rows of three. Change places into rows of four. Stand in rows of six. We - Embassy Reception Languages Spoken
At the embassy reception, everyone knows at least one foreign language: 15 people speak English 12 people speak German 7 both How many people does this society consist of if no one speaks another language? - Annual rainfall
The average annual rainfall is 686 mm. How many liters will fall on the 1-hectare field? - Expression sum calculation
The expressions A = 8x + 17, B = -12x-12, C = 9x-10 are given. Two-fifths of the sum of expressions A, B, and C are equal ... - Age Twice Sister Ago
I was twice as old as my sister four years ago. How old am I today? - Fraction missing number
What number should be added instead of the question mark 25/45 =? / 24. And how do we find out? - Fractions Three-quarters of an unknown number is 4/5. What is 5/6 of this unknown number?
- Individual
On a hill behind Terchová, there is a sheepfold where a shepherd lives. He divided his two hundred sheep into 4 groups in a mysterious way: If he had 4 more sheep in the first group, 4 fewer in the second, 4 times more in the third, and 4 times fewer in t - Candies Eaten Fractions
Walter ate 1/5 of the candies. Mark ate 1/3 of the sweets, and Susan ate 21 candies. How many candies were together? - Motion against
From two places 36 km apart, a pedestrian and a cyclist will go straight opposite each other. How long will they meet if the speed of the pedestrian is 4 km/h and the cyclist 12 km/h? - Cost of Wooden Boards
How much do we pay for 15 pieces of boards 6 m long, 15 cm wide, and 25 mm thick if 1 m³ of boards costs 130 €? Round the price to the whole of €. - Field Plowed Hectares
Tractors plowed a field of 15 3/4 ha. It plowed 3 1/3 ha in the morning, 2 5/6 ha in the afternoon, and 4 1/4 ha at night. How many hectares were left to plow the next day?
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