Maths practice for 12-year-olds - page 79 of 350

Number of problems found: 6996

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
Conversion 77474
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 6cm, 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?
Two-thirds 15
Two-thirds of a pie has already been eaten. What fraction of the pie would still leave if John ate 1/2 of what of the remaining pie?
Carla 3
Carla bought 3/4 kilogram of fish in the market for 120 pesos. If each piece of fish weighs 1/4 kilogram, how much does each cost?
Drew adds
Drew adds 1/2 cup wheat flour and 2 3/4 cups white flour to his muffin batter. How many cups of flour does Drew add?
How far 2
How far can a subway car travel in 1 hour if its average speed is 0.96 miles per minute?
A father 2
A father gave 1/3 of his land to the daughter and the remainder to the son. Son donates 3/4 of his land for the playground. He built a house in half of the remaining area, and the other half was sold for rs.1 million. 1) give the son's portion as a fracti
Gemma
Gemma prepared a sandwich for the participants of a seminar. She bought five loaves of bread for 35.50 each, two bottles of mayonnaise at 75 points 50 a bottle, and 1.5 kg of ham at 220 per kilo. How much change did she receive if she gave the sales lady
Doughnuts
2/3 of the doughnuts in a box have frosting. 1/2 of the doughnuts with frosting have sprinkles. What fraction of the doughnuts in the box have frosting and sprinkles?
Fractions and mixed numbers
Evaluate: a=5/6 + 3/4 b= 2 1/2 + 3 2/3 c= 4/8 - 3/8 d= 5/10 - 3/10 e= 11 - 4/5 f= 6/9 - 3/5 g= 11 2/3 - 7 5/6 h= 3 X 2/7 i= 4/5 X 10/12 j= 1/2 X 9 X 6/12 k= 3 2/5 X 2 1/4 l= 2 2/6 X 5 1/7
How many 25
How many quarters of a meter are there in 4 3/4 m?
The height 3
The height of a car is 46 1/4 inches. A toy model is 2 1/2 inches tall. How many times greater is the height of the car than the height of its model?

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