Maths practice for 9-year-olds - page 4 of 23
Number of problems found: 460
- Succeed 81482
Julka wanted to cut pieces 10 cm and 30 cm long from a 1 m long twine so that not a single piece would be too big for her. Did she succeed? - Calculate 81442
A crate with pears weighs 23 kg. Pears weigh 22 kg. Calculate and express as a decimal how much the empty crate weighs. - Dealership 81042
The car dealership sold three Škoda cars in one day. After rounding the entire amount to tens of thousands, she received 900,000 CZK. Write 5 options. How much could they really take? - Assembled 80750
We assemble different bodies from five identical cubes. The volumes of all bodies are equal. Calculate the surfaces of the assembled bodies. - Production 80661
The production of 4 machines takes a total of 80 hours. They make every machine for the same amount of time. How long does it take to produce 1 machine, 2 machines, or 5 machines? - Kilograms 80660
The troika sold 27 kg of smooth flour and three times less coarse flour. How many kilograms of flour did she sell together? - Seven-liter 80518
Happy Mom needs to measure exactly 6 liters of water. It only has a five-liter and a seven-liter container. How can a mother measure exactly 6 liters of water by gradually pouring? He doesn't care about other containers.
- Triangles 80492
The sum of the lengths of the three segments is 140mm. Name at least 2 triplets of segment lengths from which we can construct a triangle. Construct triangles - Mountain climbing
Ken and his brother decided to go on mountain climbing 8 miles from their house to Mt. Daraitan at a rate of x mph (miles per hour). For the return trip, it was 2 mph faster. It took them 6 hours for the entire round trip. What is the x? - Enchanted 80396
Vanilla, Chocolate, Caramel, and Cinnamon went to the Dream Party, which takes place in the Enchanted Forest. They climbed a tree that was 3 meters high. There were many similar trees, and they were the same length as the first tree. Each girl climbed one - Simultaneously 80392
Dulikovci, Elikovci, Filikovci, and Galikovci visited each other often last month. Each family visited each family exactly once. How many visits did all four families make together? If two families came to visit one family simultaneously, count it twice. - Different circles
Draw five circles with different radii. Measure the diameter of each circle and compare it to its radius. What is true about them? - Dairy 2
The dairy meal is made up of a mixture of wheat bran and cotton. 40 kg of wheat bran cost sh.1250, and 50 kg of cotton cost sh.3250. 50 kg of a dairy meal is a mixture of 48 kg of wheat bran and 2 kg of cotton. Calculate the cost of a 1 kg dairy meal. - Diala
Diala bought some books in 2012, and then during 2013, she bought 3 times as many books as she bought in 2012. Diala bought 48 books during these two years. Make a diagram to represent the given. How many books did Diala buy each year? - Beginning 78484
Kamila and Kristýna exchanged stamps. Kristýna gave Kamila 24 stamps during this exchange. After the exchange, Kamila had 7 marks less than at the beginning. How many marks did Kamila give Kristýna in this exchange?
- A two
A two-year-old car was sold for USD 30000, 50% less than its new price. Calculate the cost of the vehicle when new. - Equation: 72584
Find the solution of the equation: 2x: 8 = 3 ÷ 4, where x is an integer. - Unknown 72284
The unknown number is twice less than 80 - The temperature 32
The temperature in a place in Antarctica at noon is 5°Celsius, and every hour, it drops 4 °Celsius. Express this relationship using one equation and represent it graphically. - Number 72054 I think the number. Its value equals the sum of three times the number 12 and the number 9. What number do I think?
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