Maths practice for 11-year-olds. - page 191 of 223
Number of problems found: 4457
- Cross-country 3192
The Horsky cross-country race track on Lysá hora measures 9.7 km. For every meter, Pavel donates 50 pennies to charity. How many pennies does Paul give when he runs the whole track? - Tiles
How many 20 cm and 30 cm tiles can build a square if we have a maximum of 100 tiles? - Different 3190
Write the ratio in 5 different ways: 4:12 - Ratio
Write the ratio with other numbers so that the value is the same: 2:9 - Bar
Half of the bar is green, the third is yellow, and the remaining 40cm is red. How long is a bar? - Traveled 3176
During the trip, the scouts ran 1/2 of the route on the first day, 2/5 of the route on the second day, and on the third day, they were still 12 km away. How many km have they traveled in all three days? - Three-fifths 3174
The block-shaped pool is 8.5 m long, 4.3 m wide, and 1.5 m deep. How many hectoliters of water is in it when it is filled to three-fifths of the depth? - Rectangle 3173
Build a rectangle of MNPO if: a) (MN) = 8cm, (MP) = 10cm b) (PQ) = 6cm and angle PQM = 30 ° c) (NP) = 9cm, (PM) 8cm - Crazy week
What doesn't apply to him if the month is 31 days and five Mondays? A-5 Saturday B-5 Sunday C-5 Tuesdays D-5 Wednesday E-5 Thursdays? - Circumference 3170
Suppose we enlarge the side of the square by half the length, and the circumference of the square increases by 24 cm. Calculate the original side length. - Calculate 3169
Calculate the perimeter and area of a square with a side length of 1.3dm - Mineralka 3168
Petr bought 0.35 kg of ham, six rolls, and mineral water for a snack. How much did he pay for the purchase? (Mineralka costs 14.60 CZK, a roll 3.40 CZK, and a kilogram of ham 129 CZK). They rounded up the purchase to whole crowns. - Calculate 3163
Calculate and convert: 0.2m² + 80dm² + 200cm² = how many m2 - Schoolyard 3158
The schoolyard is rectangular. Inside, a football field is 50 m long and 20 m wide. There is a 2 m wide racetrack around the course. How many meters does the fence measure around the entire schoolyard? - Simultaneously 3157
The first machine closes 65 closing bottles per minute. The second machine closes five bottles less at the same time. How many minutes will both machines close 2,500 bottles if they work simultaneously? - Dimensions 3155
Míša bought an aquarium in the shape of a cuboid with bottom dimensions of 30 cm x 15 cm and a height of 20 cm. The seller advised him to fill the aquarium with water only to a height of 15 cm. How many swordfish can Micho buy for the aquarium if he knows - Reappeared 3152
At 6:15, a ghost conjured a clock that showed the correct time. At that moment, the hands on the clock began to move at the correct speed but in the opposite direction. The ghost reappeared at 7:30 p.m. What time was the clock showing at this moment? - Tank
1080 hectoliters of water were flowed into a cuboid tank whose bottom dimensions are 9 m and 15 m. This filled 40% of the tank's volume. Calculate the tank's depth. - Rectangle 3148
The garden tank is filled to the brim with water. The bottom of the tank is a rectangle with sides of 150 cm and 160 cm, and the height of the tank is 0.8 m. How many 15 l cans can we use to empty the garden tank? - Expression 3143
Determine the value of the expression 3x / 2 - 5/2 - 0,5x + 1 for x: a) x = 3 b) x = -3 c) x = 0
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