Maths practice for 11-year-olds. - page 138 of 222

Number of problems found: 4427

Watering 7078
A full watering can weigh 27kg. When half full, it weighs 15 kg. How much can an empty watering weigh?
Rectangular 7072
The rectangular pool has dimensions of 25 m and 12.5 m. Around it is a paved area 3m wide. What is the area of a sidewalk?
Cake 7
1/3 of a cake shared with four people. What share of the whole cake has each people?
Greater 7066
Which number is greater than 2/3 of 19 or 4/5 of 18? (type 1 or 2)
Two bricks
One brick weighs 1kg and half a brick. How many kilograms weigh two bricks?
Trolleybus 7058
The trolleybus and the city transport bus left the terminal station at 6:00 a.m. at the same time. Both will return to it again by trolleybus after 40 minutes of travel, bus after 55 minutes of travel. At what time will both means of transport meet again
Dance ensemble
The dance ensemble took the stage in pairs. During dancing, the dancers gradually formed groups of four, six, and nine. How many dancers have an ensemble?
On the trip
On the trip were more than 55 children, but less than 65. The teacher could form groups of 7, but groups of 8, no. How many children were on a trip?
According 7038
When students are ranked according to height, Katka is 12th Front and 17th Back. How many children are in the class?
The quotient
The quotient of g and 55 is the same as 279. What is g?
Two thirds
Find two-thirds of the number equal to two-thirds of 99. Find this number.
Double 5
Peter was thinking of a number. Peter doubles it and gets an answer of 8.6. What was the original number?
Fabric 7021
How many suits do we sew from 40m fabric if 3 3/4 m of cloth is used per suit?
Gasoline 7020
There were 32 4/5 l of petrol in the car's tank. The driver consumed 3/4 of this amount while driving. Thus, he consumed 32 4/5 liters of gasoline.
The total cost
Find the total cost of 10 computers at $ 2100 each and seven boxes of diskettes at $12 each.
Temperature 5
The temperature outside starts at 0 Fahrenheit. Over time, the temperature changes at a rate of -0.6 Fahrenheit per hour. How long will it take for the temperature to reach -4.5 Fahrenheit?
Children's pool
The children's pool at the swimming pool is 10m long, 5m wide, and 50cm deep. Calculate: (a) how many m² of tiles are needed to line the perimeter walls of the pool? (b) how many hectoliters of water will fit into the pool?
Cage
How many m² of mesh does a farmer use for fencing a cuboid cage with 25m, 18m, and 2.5m dimensions?
Kocourkov 7007
The train will run from Kockov to Drakov in 2 hours and 40 minutes, from Oslice to Kocourkov in 180 minutes, and from Kocourkov to Mokrov in 2 hours and 30 minutes. Which route will the train travel in the shortest and which in the longest time?
Relative 6999
The crawler tractor travels at a speed of 5 m/s. How fast are the top and bottom of the tractor belt relative to the road surface?

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