Maths practice for 12-year-olds - page 17 of 349

Number of problems found: 6975

Bookshelf 3
How many 1/35-inch thick books can fit on a 1 4/12-inch long bookshelf?
The painter
Alex had 5/6 liter of white paint. He used 1/8 of it to paint the walls and 2/5 of the remaining to paint the fence. How much paint is left?
Minus round
The outdoor temperature yesterday reached a low of −4.5°F. Between what two integers was the temperature?
A fish 2
A fish vendor sells 5/7 kilos of tilapia for P125.00. If you will buy 5 kilos of tilapia, how much will it cost?
Martin 9
Martin poured 5 liters of lemon tea equally in 2 bottles. How much lemon tea was there in each bottle?
A group 3
A group of 20 students went to see a circus. If one ticket costs ₹ 35 3/5, how much did they have to spend in all?
Common denominators
Find the common denominator 5/6 and 1/3
The length 19
The length and width of a rectangle are 1/6 inches and 3/8 inches. What is the perimeter (in inches) of the rectangle?
Improper to mixed number
Convert improper fraction 34/7 to a mixed fraction.
A piece 13
A piece of plank 2 1/2 cm thick is glued to another piece, which is 1 3/4 cm thick, to form a tabletop. Find the thickness of the tabletop if the glue used is 1/5 cm thick. primary school
Mathematical sentence
Create a mathematical sentence and give the answer. Thrice the product of 3/6 and 2 4/7 gives a result of ___________
Complete 16
Complete the conversions below, show calculations and answers 1) 3.5 kg to gram 2) 4567ml to litres 3) R45.78 to cent 4) 5.60m to centimeters
They brought
They brought 180 kg of grapes to the market. They sold 72 kg of them. What part of the grapes did they sell?
Planetary system
Robert has built a mechanical model solar system with three balls representing planets at the end of rods. Each rod is attached to the center, representing the Sun. The planets are lined up when he turns on the motor. The innermost planet makes a revoluti
Cocoa
3/4 cup of cocoa is needed to make a chocolate bar. If Rohan wants to make 16 chocolate bars, how many cups of cocoa are required?
In Paris
In Paris, TX, there are approximately 25,000 people. Of those people, 1/4 are under the age of 18. How many people are under the age of 18?
Cody states
Cody states that 1/4 + ( - 6/8 ) = 1 whole, while Eddie says that it is - 1/2. Who is correct? Justify your answer and explain your thinking.
Subtract 20
Subtract and add the following mixed numbers as given: A=2 1/6 - 1 1/2 + 4 2/3. B=4 1/4 - 1 1/3 + 1 1/12. C= 2 1/4 -1 1/5 + 3 3/20.
Sona takes
Sona takes 4/5 of a mile every day. What part of her walk has she completed after walking 3/5 miles?
Liquid density
What is the volume if the measure is 20 kg and the density is 2 kg/m³?

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