Maths practice for 11-year-olds. - page 77 of 230
Number of problems found: 4584
- Eight pipes
Eight pipes are each 2¼m long. What is the total length of the eight pipes?
- Most strenuous
Lukáš decided to go on horseback. On horseback, he can walk, which is slow and tiring, at a speed of 6 km/h. When trotting, he rises in the saddle as if jumping, then he goes at a speed of 15 km/h. The fastest and most strenuous is a gallop. The horse's s
- Standing friends
Hugo and Fido were standing in front of the stairs. Hugo went up three steps, down one, then up five, and down three. Fido went up seven steps, down five, up six, and down four. Who ascended higher in the end, Fido or Hugo? (write the result F, H, or 0 if
- The elevator
Hanka took the elevator. She got on the third floor, went down to the basement, went up five stories, went down two floors, up three, up two again, and got out. On which floor did she get off? (Don't forget what the basement is)
- Circumference 48533
The diameter of the circle is 6.8 cm. Calculate the area of the circle to 1 decimal place. Calculate the circumference of the circle to 1 decimal place.
- Sprinkler 48513
The rotary sprinkler's spray area is 20 m. What area of land can it irrigate from one location?
- Circumference 48503
Calculate the circumference of the circle if its radius is 25 cm. Express the result in meters.
- Length of the circle
Calculate the length of the circle if d = 10 cm.
- Following 48483
The river level was 2 cm above normal at the beginning of the month, then rose by 5 cm. In the following days, it fell by 12 cm, then fell by 9 cm, and finally rose by 7 cm. How high was the river level at the end of the month?
- Twelve eggs
A dozen eggs cost 80 cents. How much will 3½ dozen eggs cost?
- Joanne
Joanne and Roger are planting a rectangular garden. The garden is 8 1/2 ft by 13 ft. They want to use half of the garden for cucumbers and half for tomatoes. They decide to separate the garden into two right triangles. What is the area of the tomato part
- Father's garden
John's father has a garden in the backyard. The dimensions of the garden are shown here. A green rectangle is shown. The width is labeled as two and two-thirds feet. The length is labeled as seven and three-fourths feet. Calculate the area of the garden.
- One-third 48373
40 g of washing powder is needed for 10 l of water. When washing in hard water, the dosage should be increased by one-third. How many grams of detergent is required per 10 liters of hard water?
- Produces 48363
The shoe company produces 36,960 pairs of shoes a year. How many pairs of shoes do they produce on average per month?
- Fruit punch
Kelly made fruit punch to serve at a party for her chess team. She mixed 1 2/5 liters of cranberry juice and 1 3/5 liters of pineapple juice together. Then, she split the fruit punch evenly among nine glasses. How much fruit punch did Kelly pour into ea
- Athletic race
In a race, the second-place finisher crossed the finish line 1 1/3 minutes after the first-place finisher. The third-place finisher was 1 3/4 minutes behind the second-place finisher. The third-place finisher took 34 2/3 minutes. How long did the first-pl
- Scrapbook
Jo is making a scrapbook for her best friend's 5th-grade graduation. She used 72 photos with six photos on each page. Jo had to remove two photos on each page to make room for the writing she wanted to include. Write an expression that represents the numb
- The temperature 11
The temperature on Sunday was 4°C. The temperature dropped eight °C on Monday and twice as much on Tuesday. What was the temperature on Tuesday?
- Recipe ingredients
Monica's cookie recipe calls for Three-fourths of a cup of flour. Her mother's recipe calls for Two-thirds as much as Monica's. How many cups of flour does her mother's recipe require?
- White and blue - Anna
Anna used 8.1 pints of white and blue paint to paint her bedroom walls. Four-fifths of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use? Express your answer in fraction and decimal form. Solve on paper.
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