Equation + addition - practice problems - page 7 of 9
Number of problems found: 170
- Equation 6738
Solve the given equation in the set N: 1 - x + x² - x³ + x4 - x5 +…. + = 1/3 - House numbering
The residential house has three entrances numbered even numbers, successive immediately behind. The sum of the two numbers on the outside entrances is 68. Calculate the middle of these three numbers. - Contribution 6273
Vojta and Martin have been contributing to charity since the same day. Vojta contributes 110 CZK every week. Martin contributes 85 CZK every week, and in addition, he made a one-off contribution of 300 CZK at the beginning. Calculate how many weeks Vojta - Calculate 6217
Calculate the larger of the two shields if you know that the smaller shield is a third of the larger one, and their sum is 48.
- Expeditions 6119
There are 99 athletes on the American team. There were 35 more athletes in the Japanese expedition than in the American one. There is an eighth less in the Czech expedition than in the Japanese expedition. How many athletes are there on individual expedit - Addition 6113
Find the natural numbers x and y such that: 1/2 = x / y and in addition that: x + y = 6 - Branches 5825
Parrots, a few of them flew around and sat down anyway. 3 on the dog's back. There are 29 parrots. There were 9 more sitting than flying. 6 more sat on the branches than on the grass. How many parrots were still flying? How many were sitting on the branch - Savings
Eva lent 1/3 of her savings to her brother, 1/2 of savings spent in the store, and 7 euros left. How much did she save? - Identity
123456789 = 100 Correct the given identity/equation only using three plus or minus signs.
- Calculate 5274
Calculate the second sum if you know that one sum is -124.6 and the resulting sum is (-200). - Animals 4776
There are five animals in the yard. There are only goats and geese. They have a total of 14 legs. How many geese and how many goats are in the yard? - Decimal 4641
The sum of two decimal numbers, one of the numbers is 3.2, larger than the other, is 52.78. - Hello adding
Fill letters instead of digits so the indicated sum (equal letters represent equal digits). What number is hidden under the letter J? A A H A H O A H O J -------------------------- 4 3 2 1 - Government 4253
The government had saved a few cents. They added another 60 cents. He missed 90 cents in the school cafeteria. He has 284 cents left in the treasury. How many cents did Vlado save?
- Unfortunate 4243
The unfortunate landowner had 49 ducats more than Jurosik. How many ducats did Jurosik steal from the landowner if he now has five ducats more than the landowner? - Flowers
The flower has six flowers, and each flower has a number. These are the numbers: 20,40,39,28,8,9. What number will be in the middle of the flower so that the numbers come from the flowers when we subtract and add? - Summands
Find two summands of the number 42 so that its product is minimized. - Departed 4061
By evening, 26 planes had arrived at Orange Airport, and 39 departed. In the evening, there were 54 at Orange Airport. How many planes were there at Orange Airport in the morning? - Numbers 3974
The sum of two numbers is 10,000, and one is four times larger than the other. What are two numbers?
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