Maths practice for 11-year-olds. - page 130 of 226
Number of problems found: 4508
- Brick density calculation
Hansel weighed a broken piece of brick and found that it weighed 48 grams. Using a measuring cylinder, he determined its volume at 30 cm³. What is the density of the brick? - Hares and pheasants
After the hunt, hares and pheasants lie in the field. There are a total of 80 heads and 190 feet. How many hares and how many pheasants? (please, without equations) - Reading Book Pages Schedule
Roza calculated that if she read ten pages a day, she would read the whole book in 18 days. After a week, however, she decided to read one more page a day. How many days will he read the entire book? - Three People Spending Ratio
One paid 500 CZK. Three paid in a ratio of 3:4:5. The smallest expenditure was CZK 360. How much was the total expenditure? - Step count
George makes steps 60 cm long. He will take 1530 steps on the way to school. How many steps will his father take to the class meeting if he makes steps 85 cm long? - Driver Speed Increase Time
The driver covered the distance between the two cities in 2 hours at an average 75 km/h speed. How did he change speed to get 20 minutes faster? - Cleaning the pool
The swimming pool is 25 m long, 12 m wide, and 2 m deep. The walls and bottom of the pool require regular cleaning. The company that cleans the pool charges CZK 50 per 1 square meter. How much does the owner pay for cleaning the pool? - The King
The King wants to divide his sons equally. He has 42 rubies and 45 diamonds. How many sons and how will they share them? - Steps Around Rectangular Course
Monica has a step 5 dm long. How many steps will she take before going around a rectangular course 500 dm long and 200 dm wide? - Saving for an apartment
The Adamec, Benda and Cibulka families began saving for an apartment priced at 750 000 Kč in January 1997. The Benda family had 250 000 and save 4 000 Kč monthly; the Adamec family had 370 000 Kč (Kč is Czech crown) and save 6 000 Kč monthly; the Cibulka - Difference of a half
Calculate three times the half difference of 7.5 and 2.1, - Area of rectangle
If we increase the length by twice and decrease the width by half, how many times will we increase the area of the rectangle? - Triangle Third Angle
Calculate the magnitude of the third interior angle in triangle ABC when alpha = 30 °, beta = 60 ° - Three Inlets Fill Time
The pool is filled with three identical tributaries in 12 hours. In how many hours will only two tributaries fill it? - Cable Digging People Days
In 12 days, ten people will dig a 3 km cable car. In how many days will five people dig it up? - Basket bun sharing
There were 16 buns in the basket on the table. Josef ate half of it, Eve ate the rest, and Duncho ate it. How much did Dunco eat? - Spruce wood
Calculate the weight of an edge made of spruce wood 6 m long when the cross-section of the edge is 146 cm square and if the density of the wood is 0.55 grams/cm cubic. - Cube QR Codes Area
Peter built a cube in Ostrava, each wall with a unique QR code. The edge of the cube is 107 cm long. Calculate how large an area its author had to cover with white and black. - Birthday weekday
Adam's birthday is on Monday, and Eva's 66 days later. Which day of the week will it be? - Flowerbeds
What is the smallest length of flowerbeds we must prepare to plant seedlings at grids of 20,30,25,40 cm?
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