Examples of equations for practice for 13 year olds - page 17 of 96
Number of problems found: 1913
- Children 5612
The woman has two children; in 4 years, they will be 60 years old, and the children are the same age. How old are the children now? - Weighs 4877
A + B weighs 75 kg, B + C weighs 83 kg, C + D weighs 92 kg. How much does A + D weigh? - Determine 3769
12% of x is 58 more than (6²) +5. Determine x. - Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Savings 2411
How many euros does Karol save if 7% of his savings is 70 euros? - Coffee
The coffee from the machine costs 28 cents per cup. Coffee is 20 cents more expensive than the cup. How much is the cup? - Three angles
The three angles of a triangle are (3x-2)°, (4x+5)°, and (2x-3)°, then find the angles. - The sum 40
The sum of the two numbers is 75. If the smaller number is 20 more than 1/5 of the larger number, find those two numbers. The large number is x, and the small number is y. - 56.9 divided
56.9 divided by 10 missing exponents = 0.569 - Fruits
2/3 of the fruits are cherries, and the rest are grapes. I sold 1/2 of the cherries and 1/4 of the grapes. If I had 280 left, how many fruits had I at first? - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - A Piece 6
A piece of material measures 40 inches. Sara cuts the material into two pieces, one measuring 14 inches. Write an addition equation that we could use to find the length of the other piece of the material. - Dividing money 6
P 49,000 is to be divided among three children, X, Y, and Z. If X will receive double that of Y. Y will receive double that of Z, how much will Z will receive? - Squares
From the square with the integer side, cut out the square with the integer side so that the residual area is 100. What is the longest possible side of the larger square? - A fraction
I think of a fraction. If we increase its numerator and denominator by one, the value of the fraction increases by one-tenth. What fraction do I think? - Three points 4
The line passed through three points - see table: x y -6 4 -4 3 -2 2 Write line equation in y=mx+b form. - Midpoint 6
For line segment length is given: FM=8a+1, FG=42. Point M is the midpoint of FG. Find unknown a. - Discount price
The coat cost 150 euros after-sales discount. What is the original price when the discount is 25% of the original price? - A mother
A mother is three times older than her daughter. 9 years ago, a mom was six times older than her daughter. How old are a mother and daughter now? - Miss competition
How many girls took part in the Miss School competition if the nines grade made up half of the contestants, two-thirds of the remaining girls were from eighth grade, and the seventh grade were three?
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