Math practice for 13 year olds - page 376 of 424
Number of problems found: 8477
- Shop stores
Workers delivered fruit to stores. In the first, they deposited a quarter of the shipment. In the second, a fifth of the shipment. In the third, two-fifths of the rest, and in the fourth, 231 kg. How many fruits were there altogether? - Scouts
Three scouts went on a three-day trip. On the second day went 4 km more than the first day. The third day went two times less than the first day. They went along 54 km. How many kilometers went every day together? - Dollars
Mother split 760 dollars between Jane, Dane, and Eve: Jane got three times more than Dane and Dane and 40 dollars more than Eve. How much does each of them? - Pytagoriade
Two fifth-grader teams compete in math competitions - Mathematical Olympiad and Pytagoriade. Out of 33 students in class 5 A, 22 students competed in at least one of the competitions. Students who competed only in the Pytagoriade were twice as many who ju - The book
If you read p pages daily, you will read the book for 24 days. If you read ten pages each day more, you would read a book in 16 days. How many pages have the book? - Travel by bus
Five girls are traveling by bus. Each holds in each hand two baskets. Each basket contains five cats. Each cat has five kittens. Three girls get off the bus, and another girl without baskets goes on board. The bus control driver. How many legs are on the - Triangle
Determine whether we can make a triangle with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 119 b = 170 c = 130 - Football league
There are 16 teams in the football league. How many different sequences of results may occur at the end of the competition? - Chord 4
I need to calculate the circumference of a circle, and I know the chord length c=16 cm and the distance from the center d=15 cm chord to the circle. - Five girls
Five girls are traveling by bus. Each holds in each hand two baskets. In each basket are four cats. Each cat has three kittens. Two girls exit the bus. How many legs are on the bus? - Bath salts
Bath salt A weighs 900 grams and costs 36,40 CZK. Bath salt B weighs 1000 grams but costs 85 CZK. How much is a bath salt A cheaper than B salt? - Grandson and granddad
Grandson with Grandpa counted how many years they had together. Their product is 365. How many years is the sum of their years? - Water lake
The length of the lake water is 8 meters, width 7 meters, and depth 120 centimeters. How many liters of water can fit into the water lake? - Two boxes-cubes
Two boxes of a cube with edges a=28 cm and b = 92 cm are to be replaced by one cube-shaped box (same overall volume). How long will its edge be? - Equilateral cylinder
The equilateral cylinder (height = base diameter; h = 2r) has a V = 178 cm³ volume. Calculate the surface area of the cylinder. - Masons
One bricklayer lays 30.8 m² of masonry in 8 hours. How long will it take four bricklayers to lay 178 m²? - Chord AB
What is the chord AB's length if its distance from the center S of the circle k(S, 50 cm) is 43 cm? - Silver medal
A circular silver medal with a diameter of 10 cm is an inscribed gold cross consisting of five equal squares. What is the area of the silver part? b) What is the area of the Golden Cross? - Rectangle and circle
The rectangle ABCD has side lengths a = 40 mm and b = 30 mm and is circumscribed by a circle k. Calculate approximately how many centimeters a circle is long. - The star
Find the area of the shaded part of a square with a side of 22 cm.
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
