Unit conversion - practice for 12 year olds

Number of problems found: 58

A rectangular 7
A rectangular water tank has a square base of 90 cm on its side. If it is 300 cm high, how much water can it hold?
Huddersfield 70164
Prague's direct distance to Huddersfield (United Kingdom) is 1680km. What is the map's scale, at which this distance is 84 cm?
Street 70104
What length will the 120 m long street have on the plan at a scale of 1: 1500?
Increases 69454
The car weighs 1850 kg and increases its speed from 27 to 81 km / h. How much has its kinetic energy increased?
Lengths 69314
We must cut three steel bars with lengths of 24 dm, 3 m, and 160 cm into equal lengths. Find their maximum length and number.
Measuring 67484
We poured 3 liters of water into an empty aquarium measuring 30x20 cm and 25 cm high. What is the level?
Measuring 67014
The density of gold is 19200kg / m³. How much does a gold bar measuring 25cm, 8cm, and 37mm weigh?
Pool model
The 1: 500 scale pool model has internal dimensions of 15 cm, 10 cm and 2.5 mm. Calculate how many hectoliters of water will be needed to fill a pool that will build according to this model.
Square garden
The square garden has an area of 36 square meters. What area will its image have in the 1:60 scale?
Cylinder 60463
Find the surface and volume of a cylinder whose height is 10 dm and the base circle radius is 20cm.
The tailor
The tailor estimated the rest of the fabric in the package at 11 m. By measuring, he found that he could cut the same pieces of this fabric without a residue in 150 cm or 210 cm increments. How many meters of fabric was in the package?
Power consumption
The price of electricity is ₱6.50 per kilowatt hour (kWh). If a television with 120 W power consumption ran from 7:30 AM to 12:30 PM, how much electricity was consumed?
Licorice
A piece of licorice is 2/3 yard long. If it is cut into 10 equal pieces, how long will each piece of licorice be?
A rope 2
A rope that is 6 meters long will be cut into 24 pieces that are all of the same length. What will be the length of each piece in centimeters? (100 cm = 1 m)
Ten packages
Tina has 10 packages of yarn to knit a scarf. She uses 1/3 of package of yarn for each inch of length she adds to the scarf. If Tina uses all the yarn, how long will her scarf be?
Smallest 44681
What is the smallest width of the pool to be divided without rest into equally wide tracks, either 80cm or 1m or 120cm?
The granite ball
What is the weight of a granite ball with a radius of 60 cm, if 1 m³ of granite weighs 2.7 tons?
Cloth / textile
We have cloth measure 16 square meters. How many 20 cm by 20 cm by 8 cm bags you can make? Assume bag is a cuboid without one top base.
Mike built
Mike built a cylindrical water tank with a radius of about 1.8 m and height of 2 meters. How many liters of water will it hold?
Barrel-shaped 40601
The barrel-shaped cylinder has a volume of 9.42 hl, the inner diameter of the bottom is 12 dm. Calculate the area of the barrel shell in m². Solve in general first.

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Unit conversion - practice problems. Maths practice for 8 year olds.