Unit conversion - practice for 13 year olds - page 2 of 43
Number of problems found: 843
- The apothem
The apothem of a regular hexagon is 5√3 inches. Find one of its sides and area. - Temperature conversion
The average human body temperature is 98.6 degrees Fahrenheit. What is the temperature in degrees Celcius? - 5000g 83239
If 5000g costs €120, how much will 100g cost? - Minutes 6069
How many minutes is 60% of two hours?
- Percentage 3138
What percentage are 720 liters of 6m³? - One inch
One inch = 2.54cm. How many cm are there in 25 inches? - Increase 81782
What ratio must we increase to 1 m to get 1 m 50 cm? - Kilograms 23581
How many kilograms is 24% of 30 tons? - 15.38
15.38 mg of vitamin C/oz. How much is vitamin C in an orange that weighs 635 oz?
- The silver
The silver ring weighs 10 grams. The ring contains 850 per mille of pure silver. Calculate the amount of pure silver in grams. - Resistance
A resistor having an electrical resistance of 1.5 k ohms passes an electrical current of 0.1 A. Calculate the voltage between the terminals of the resistor. - Sidewalk 70074
The sidewalk is 500m long. How will it be marked on the plan on a scale of 1:200? - Kilometers
The scale of the map is 1:100,000. How long is the road, which is 4.7 cm long on the map, really long? - Feet to miles
A student runs 2640 feet. If the student runs an additional 7920 feet, how many total miles does the student run?
- Density - simple example
Material of density of 1189 kg/m³ occupies a container volume of 64 cm³. What is its mass? - Centi-year 73254
How many minutes is the centi-year longer / shorter than a deca-month? The year is 365 days, and the month is 30 days. - Travel 4858
How long will a 1 km long tunnel take to travel at a speed of 100 km per hour? - Time
Write time in minutes rounded to one decimal place: 3 h 48 m 45 s. - Wire cut 2
We can cut a length of wire into five pieces, each 24 cm long. How many pieces, each 15 cm long, can be cut from the wire?
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