Examples of equations for practice for 12 year olds - page 23 of 59
Number of problems found: 1180
- Traveling 12371
Behind a cyclist traveling at an average speed of 20 km/h, he left the same place 2 hours later than a passenger car at an average speed of 60 km/h. How long and at what distance will the passenger car catch up with the cyclists? - Where and when
The truck left Kremnica at 11:00 h at a speed of 60km/h. At 12:30 h, the passenger car started at an average 80km/h speed. How many kilometers from Kremnica will the passenger car reach the truck, and when? - Inspection 12171
During the inspection of the trees, we found that 1/3 was broken and 2/5 bitten. In the beginning, there were only 40 pieces. How much was planted in total? - Radius
Find the radius of the circle with area S = 200 cm².
- Floating of wood - Archimedes law
Wooden balsa block has a density of 200 kg/m³ and a volume of 0.02 m³ floating in alcohol. Alcohol density is 789 kg/m³. What will be the volume of the floating part of a balsa block? - Multiplied 11801
Which number needs to be multiplied by 2 3/4 to get 8 1/3? - Agricultural 11691
The tractor leaves the field and heads towards an agricultural cooperative 14 km away at an average speed of 20 km/h. Twenty minutes later, an agronomist followed him from the same field on a motorcycle at an average speed of 45 km/h. Will he catch up wit - Confectionery 11651
Jana spent 1/2 of her savings on the confectionery, gave 1/3 for her notebook, and had 7 euros left. How many Euros did Janka save? - Specify 11621
If we add 1/7 to the given number, we get 1/2. Specify the number.
- Concreting 11451
During concreting, the workers used 1/2 of the total amount of cement on the first day, 1/2 of the rest on the second day, and the remaining 15 q of cement on the third day. How much cement did they consume in total? - 45th birthday
This year Mrs. Clever celebrated her 45th birthday. Her three children are now 7, 11, and 15 years old. How many years will Mrs. Clever's age equal the sum of her children's years? - Math test
In mathematics, there were 25 problems of three kinds: light 2 points, medium 3 points, and heavy 5 points, and the best score was 84 points. How many points did Jane have when she solved all the easy examples, half of the medium, and one-third of the dif - Divide candies
John, George, and Adam shared candies in a ratio of 2:3:1. John received six candies. How many candies did the boys share? - Difference 10741
Twice, the difference between the number 50 and the unknown x reduced by the unknown x is equal to the number 106. What is the unknown number?
- Well-known 10731
The well-known Candle Collector, Antonín, had half of the blue candles in his collection, a third of the candles with a colored motif, and 128 green candles. How many candles does Antonín have in his collection? - Radius of the circle Calculate the radius of the circle whose length is 107 cm larger than its diameter
- Dividing money Vilem, Cenek, and Edita divided the money they earned by spreading the leaflet. Vilem got 240 CZK more than Cenek and twice as much as Edita. Edita got 400kc less than Vilem. How much did each of them earn?
- New bridge
Thanks to the new bridge, the road between A and B has been cut to one-third and is now 10km long. How much did the road between A and B measure before? - Pizza
Five friends were together for pizza. Adam divided his pizza into thirds, Boris in quarters, Denis in patina, and Luke in sixth. Then Simon also came to them. Every five boys gave him one piece, leaving him one whole pizza. How many equal parts did Ivan s
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