Maths practice for 10 year olds - page 54 of 63
Number of problems found: 1251
- Calculate 2310
Calculate the root of the equation: x - (- 250) = - 500
- Penultimate 2303
In the last 20 minutes, six songs were played. Two were the same length, 2 minutes each, 49 s. The next two were 52 seconds longer than the previous one. The penultimate song lasted only 180 s. How long was the last song? The last song lasted. It could ha
- Ferko
Ferko boarded the tram, which already had 19 passengers. At the first stop, the tram left twice as few passengers, and at the second stop, twice less. The third stop was final. How many passengers left with Ferko at the third stop?
- Paper collecting
At the paper collecting contest, Franta gathered 2/9 tons, Karel 1/4 tons, and Patrick 19/36 tons of paper. Who has gathered the most and the least?
- Package
The package was 23 meters of textile. On the first day, it sold 12.3 meters. How many meters of textile remained in the package?
- Area of square
Calculate the area of the square whose perimeter is 24 dm.
- Chocolate
Children break chocolate first to third and then every part of another half. What kind got each child? Draw a picture. What part would have been received if each piece had halved?
- Roses and tulips
At the florist are 50 tulips and five times fewer roses. How many flowers are in the flower shop?
- Fence
The square garden has an area of 537 m². How many meters of netting is necessary to fence it?
- LCM
The common multiple of the three numbers is 3276. One number is in this number 63 times, the second 7 times, and the third nine times. What are the numbers?
- Day Number
The day number is the serial number of the day in the relevant month (i.e., the number on 5 August 2016 is 5). The digit sum of the day is the sum of the values of all digits on the date of that day (i.e., the digit sum on 5 August 2016 is 5 + 8 + 2 + 0
- Chamber
In the chamber, light is broken, and all from it must be taken at random. Socks have four different colors. If you want to be sure of pulling at least two white socks, we have to bring them out 28 from the chamber. To have such certainty for the pair of g
- Flood water
Flood waters in some US villages meant the homes had to be evacuated 362 people. Fifty of them stayed at elementary schools, 62 they slept with their friends, and others went to relatives. How many people have gone to relatives?
- Pupils
Two classes want to collect money. Boys are four-seventh pupils. In time, a quarter of the boys and a sixth of the girls did not pay, which meant 12 sinners. How many pupils attend these two classes?
- Straight lines
Draw two lines c, d so that c || d. On line c, mark points A, and B, from point A starts perpendicular to line c, from point B perpendicular to line c.
- Freezer
The temperature is -8 degrees Celsius in the freezer. The outside temperature is 2 degrees Celsius. If we open the door, it takes one minute to change the temperature by one degree Celsius. How many minutes the temperature in the freezer will rise?
- Infants water
The tank, which has ten hectoliters of water for infants, went 580 liters in the morning and 340 liters in the afternoon. How many liters are left in the tank?
- Pump
The yard pump is dripping water. Every drop is 1 ml. How many drops will be necessary before filling a bucket with a volume of 10 l? Calculate how long it will take to fill the bucket when drops fall each second.
- Square grid
A square grid consists of a square with sides of a length of 1 cm. Draw at least three patterns, each with an area of 6 cm² and a circumference of 12 cm, and their sides in a square grid.
- Number train
The numbers 1,2,3,4,5,6,7,8, and 9 traveled by train. The train had three cars, and each was carrying just three numbers. No. 1 rode in the first carriage, and in the last were all odd numbers. The conductor calculated the sum of the numbers in the first,
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