Maths practice for 13 year olds - page 3 of 341
Number of problems found: 6813
- A rectangle 13
A rectangle has an area of 15 square inches. What is the missing side length if one side length is 1 2/3 inches wide? - Fraction number
If two-thirds of a number is added to one-ninth of the same number, the result is 7. Find the number. - Kelly earning with overtime
Kelly earns $12 an hour. She works 40 hours a week with time and a half for overtime. Kelly worked 46 hours. How much did she earn? - The restaurant
The restaurant is 3/8 miles from the office. She makes the walk in 7 1/2 minutes. At the same rate, how long will it take her to walk the two miles from her home to her office?
- Cupcakes
Keia and Hiro made a total of 27 cupcakes. Keia made 2 times as many cupcakes as Hiro. How many cupcakes did Hiro make? - Tomato plant
Bruce's grandmother loves to use fresh tomatoes in her homemade pasta sauce. Bruce thought she might like to grow her own, so he bought her a planter box and a tomato plant. The planter box is shaped like a rectangular prism. It is 12 1/2 inches long, 10 - ET inscribed circle
An equilateral triangle has been inscribed in a circle with a radius of 4 cm . Find the area of the shaded region. - Harold
Harold made a rectangular dog run in his backyard. The area of the dog run is 96 square feet. What are three different possible dimensions of dog run? - Collinear lines
Points A, B, and C are collinear, and B lies between A and C. If AC = 48, AB = 2x + 2, and BC = 3x + 6, what is BC?
- The triangle 6
The triangle has an area of 7 ⅞ cm² and a base of 5 ¼ cm. What is the length of h? Explain your reasoning. - The ratio 19
The ratio of males to females in a school is 1:2. If there are 24 pupils, find the number of males. - Horseback riding
The total cost to go horseback riding is x dollars per hour plus a $2 fee for renting a helmet. Which expressions represent the cost, in dollars, for 4 people to go horseback riding for 3 hours each? Select all that apply. Responses: A = 4(3x+2) B = 3(4x+ - Julia 4
Julia correctly solved a math problem by first dividing 44.5 by 5 and then subtracting 23 from the result. Which equation could be solved to get the same answer? Responses: A 5x+23=44.5 B 5(x-23)=44.5 C 5(x+23)=44.5 D 5x-23=44.5 - Drain and inlet
The reservoir is filled with inflow in 12 hours. It will drain through the drain in 9 hours. Can the tank overflow if we leave the inlet and outlet open at the same time?
- A picture crop
Mr. Paul has a picture that measures 4 by 12 inches. It must be reduced so that the longest side measures 4 inches to fit in the school newspaper. Find the length of the shorter side of the picture once it has been reduced. - Ketchup vs mustard
A 20-ounce bottle of ketchup costs $2.80. A 14-ounce bottle of mustard costs 2.38. Which item costs less per pound? How much less? - The endpoints
The endpoints of a segment are (-6,1) and (10,11). What are the coordinates of its midpoint? - Saw a board
A board of 16 3-fourths inches is cut from a board that is 3 feet long. If the width of the saw cut is one-eighth inch, what is the length of the remaining piece? - Addition method
Solve for the variables by substitution or addition method: x + 3y = 19 5x + 3y = 35
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