Maths practice for 12-year-olds - page 82 of 354

Number of problems found: 7066

Convert 5
Convert to a mixed number and simplify: 83/6
Scientific experiment
In a scientific experiment, the temperature of a liquid was -12 degrees. If the temperature was increased by 5 degrees, what would the temperature be then?
Femma
Emma mixes 1 7/8 cup of water with 2/3 cup of orange juice as a part of a recipe. How many cups is her mixture?
A molecule
A molecule travels with a speed of 8100 centimeters per minute (cm/min). How far would the molecule travel in centimeters in 3.19 seconds?
Ruby barbecued
Ruby barbecued 3 1/2 kg of meat for her visitors. If she served 5/8 of the barbecue, how much barbecue was left?
Solve 15
Solve equation with fractions 29/12=24/12+?/12
Convert 4
Convert 2 7/10 into an improper fraction.
Express 66
Express 6 whole 7/10 hours in minutes.
Adding 11
You are adding numbers. Which of the following numbers to 3/5 will give a whole number? a. 2 b. 2/5 c. 5/3 d. 3/5
Temp drop
It is 70 °F ‬, and the temperature is expected to drop to 85° in the next month. What is the temperature expected to be?
Carbohydrates
Suppose five pieces of candy contain 11 grams of carbohydrates. How many grams of carbohydrates do 20 pieces contain?
Sarah 2
Sarah noticed that the temperature went from 20 degrees and dropped to -10 degrees. Sarah says that the change in temperature is -30 degrees, while her friend Kenya says that the temperature change is 10 degrees. Who is correct? Explain your reasoning
Prism volume conversion
A wooden prism is 220 cm long, 10 cm high, and 10 cm wide. What is the conversion of its volume to m³?
Rachel 2
Rachel rode her bike for one-fifth of a mile on Monday and two-fifths of a mile on Tuesday. How many miles did she ride altogether?
The length 14
The length of the rectangle is 6 cm, and the perimeter of the rectangle is 20 cm. Find the rectangle's breadth. Find the area of the rectangle.
A pupil
A pupil in our street goes to school by taking a bus to travel 1 1/2 km and then walks 1 1/4 km. What is the distance between his school and house?
Large dogs
There are 30 dogs at the park. 5/6 of the dogs are large. Which method is a way to find the number of large dogs at the park?
A length
A length of 10/15 meters is cut from an electric wire whose length is 13/15 meters. How long is the remaining piece of wire?
Mr. Giron
Mr. Giron had a rope that was 4 ¼ feet long. His dog bit and cut off 1 ½ foot of the rope. How long is Mr. Giron's rope now?
In dividing 2
In dividing fractions, we get the reciprocal of the divisor. If the reciprocal of 3/5 is 5/3, then what is the reciprocal of 1 1/3?

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