Math practice for 13 year olds - page 29 of 432
Number of problems found: 8632
- Pupils
There are 40 pupils in a class. 30% of them are boys. How many pupils in the class are girls? - A container
A container with 2 1/2L of water is being poured into other containers that can hold 1 1/3L of water. Each container has to be filled, so how many L of water will the last container hold? - Bags
If six bags of flour have a mass of 27 kilograms, what will be the mass of 11 bags? - Merly
Merly prepared the table for lunch. She put a place mat that measures 5 dm long and 3 dm wide; she placed a plate on it with a diameter of 3 dm. How many mats can be seen on the table? - Tom is
Tom is making birdhouses to sell at a farmer's market. Each birdhouse requires 4.5 feet of wood planks to build, and he sells them for $19.75 each. How much money can Tom earn at the farmer's market if he has no more than 80 feet of planks to build birdho - A bakery
A bakery makes cylindrical mini muffins that measure 2 inches in diameter and one-fourth inches in height. If each mini muffin is completely wrapped in paper, how much paper is needed to wrap 6 mini muffins? Approximate using pi equals 22 over 7. - In which
In which of the following expressions does the number 16 fill in the blank so that the equation is true? Select all that apply. A) 8(___ + 3) = 32 + 24 B) 8(2 + 9) = ___ + 72 C) 4(7 + 4) = 28 + ___ D) 8(5 + 6) = 40 + ___
- Three 232
Three out of eleven working mothers in a major US city have at least one child under the age of Five(5). If there are 2,250 mothers employed in that city, how many have at least one child under the age of five? (round to nearest whole number) - The rope
Fred was learning to tie rope. He had 5 1/2 feet of rope. If each knot took up 4/5 of a foot of rope, how many knots could he make? - Represent 14
Represent 10% as a fraction reduced to the lowest term. - One-third of a drum
1/3 rd of a drum is filled with water. Needed another 60 l of water to fill the whole drum, then what is the capacity of a drum? - Edmond 2
Edmond bought a new cage for his pet rabbit since he's gotten so big. The area of the old cage's floor was 6 square feet. The area of the new cage's floor is n square feet larger, for a total of 8 square feet. Write expressions that tell this story and fi - Charity
Greg's grandmother is knitting scarves for charity. The table shows the number of yards needed for different types of scarves. Yarn Type ; Number of Yards Bulky ; 150 Light ; 250 Medium; 200 She plans to make bulky scarves and has no more than 2,250 yards - A shop 6
A shop sells cool drinks at R10 (Indian rupees) each, excluding 15% VAT. What is the price of the cool Drink, including VAT? - After 9
After reducing the price by 10%, the dress costs 270 GEL. What was the cost of the dress before it got cheaper?
- Angles 22
Angles A and B are complementary. Angle A is 29°. Find the measure of angle B. - Area - simple
Find the area of the triangle. So, the base is 7 2/3 mi. The height is 7 mi. What is the Area? - Peter 17
Peter ate 9 ounces of chocolate cake which was 75% of the entire cake. Which expression can be used to find the size of the full cake? - Miloš
Miloš and Martin helped water the new vineyard. They had to carry water from the well in buckets. How did they divide the 20-euro reward if Miloš applied 20 buckets and Martin 30 buckets? - The angles 4
The angles of a triangle are divided into the ratio 126: 213: 312. If the three angles sum to 180°, find the size of each of the three angles.
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