Maths practice for 11-year-olds. - page 101 of 230
Number of problems found: 4585
- The body
The body has 2 m, 2 dm, and 10 cm dimensions. It weighs 28 kg. What is its density? - Ružomberok 31281
A passenger car traveled the route from Trencin to Ruzomberok in 1 hour and 48 minutes. These two cities are 144 km apart. How many minutes would the driver shorten his return trip if he traveled an average of 90 km per hour? - Rectangular garden
The rectangular garden has a length of 48.7 m and a width of 6.3 meters shorter than the length. How much mesh should be bought for its fencing if the gate is 2.9 m long and the gate 1.1 m? What is the area of the garden? - Cube edges
The cube has an edge of 4 cm. It has the same volume as a block, the base of which has an area of 32 cm². What height is the block? - Kilometers 31211
The road roller has a base diameter of 1.2 m and a length of 180 cm. a) how many times did he turn on the road when he walked 2 km during work? b) what is the largest area it can cover if it turns 1000 times? c) how many kilometers will he travel if he co - A section
A section of the boardwalk is made of 15 boards. Each board is 9 1/4 inches wide. The total width of the boardwalk is 144 inches. The spacing between each board is equal. What is the width of the spacing between the boards? - Clothes 31151
Mom bought the boys the same fabric for their clothes. Pepik has 2.5m of fabric, Karl 1.25m, and Luis 0.3m more than Karl. How many crowns will they pay for fabric if 10 cm costs CZK 13.80?
- Hectare
The rectangular plot has a width of 2500 cm and is 0.065 km long. How much CZK will we pay for covering the land with a lawn at the price of CZK 3,500 per hectare? - Numbered 31051
Pavel walks down the street on the side where the houses are numbered with even numbers. From the number 2, count the number of twos in the house numbers. He stops at home, in front of which he counts the fifteen two. What is the number of this house? - Outside 30931
The water barrel, 90 cm high and 60 cm wide, has no lid (upper base). How much paint do we need to paint the barrel from the outside? If 1 kg of paint is enough for 8m². - Diameter 30921 The road roller has a diameter of 1.2 m and a width of 1.8 m. How many square meters will the road level if it turns 20 times?
- Running
The length of the inner edge of the running oval is 400 m. The straight sections measure 90 m. Calculate the dimensions of the oval - the rectangle where this oval can fit. - Everyday
One employee leaves with two briefcases every day and returns on the 4th day. These two briefcases won't be available till the 05th day as the departing employee leaves before the briefcases arrive back and are adequately cleaned. How many briefcases are - Edge c
Find the edge c of the cuboid if an edge a = 20 mm, b = 30 mm and surface area S = 8000 mm². - Kilometers 30801
The tourist walked 3km in 45 minutes: how many kilometers will he travel in 2 hours and 30 minutes?
- Cube V2S
The volume of the cube is 27 dm cubic. Calculate the surface of the cube. - Determine 30701
Determine the density of sugar if 0.25 cubic meters in the container weighs 0.403 tons - The equator
Calculate the length of the equator. Calculate a radius of 6378 km. Round to the nearest thousand. - Procedure and calculation - Dimensions 30651
How many tons of cement are needed to concrete two pillars 6.5 m high with a base in the shape of four squares joined into one cross of dimensions 1.2 m? 2.5 q of cement is needed for 1 cubic meter of concrete. - Unknown metal
The prism made of unknown metal has dimensions of 3 cm by 3 cm by 5 cm and a weight of 121 g. What metal is it? Write its chemical symbol.
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