Maths practice for 11-year-olds. - page 189 of 224
Number of problems found: 4479
- Fraction calculation
Determine one-third of the number, one-fifth of which is one-seventh. - Parts production
Workers produced 12,500 pieces of parts in three days. On the second day, they produced 200 pieces less than on the third day, and on the first day, 350 pieces more than on the 2nd day. How many do they make each day? - Bee hive
Half a bee swarm settled on a lilac, a third on roses, a seventh on jasmine, and one bee on clover. How many bees were in the hive? - Screw production
How many screws can we make from a rod whose weight is 3 3/4 kg if the weight of the screw is 3/16 kg and we count 3/20 of the material? - Flour hopper
The baker filled the bakery flour hopper to 3/4 volume. After removing 875 kg of flour, he filled it with only 2/5 of the volume. How many tons of flour is in the full hopper? - Fraction difference How much is 1/3 bigger than 1/9?
- Small cubes
How many small cubes do we get when we cut a cube with an edge of 5 dm into cubes with an edge of 1 dm? - Jet distance
What distance (in km) will the jet fly at 500 km/h in 12 minutes? - Travel time
At what time the body travels a distance of 105 km with a steady movement at a speed of 70 km/h? - Fence of the garden
The garden has dimensions of 5m and 400cm. How many meter meshes are needed for fencing the plot? - Charity donation
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? - Ratio expressions
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? - Scout trip
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? - Pool water
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 construction
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? - Square side
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.
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