Examples of equations for practice for 12 year olds - page 24 of 58
Number of problems found: 1143
- Double and triple
Find the number to which it is true: Its double is five less than its triple. - Numbers 7841
In the middle between the unknown number and the number 166 is the number a) 164, b) 200, c) 500 d) 1356 What are the unknown numbers? - Smaller 7840
Which number is 2a-b smaller than a + 2b? - Mathematics 7806
Janko has committed that his average grade in mathematics will be exactly 2 at the end of the semester. However, so far, he has received grades 3 and 4. He knows that by the end of the year, he will receive four more grades from the tests. What are the wo
- Which
Which decimals, when subtracted, equal 3.89: a - b = 3.89 - Minutes 7720
Miloš goes to school on roller skates at a speed of 18 km/h. The journey takes 15 minutes. What speed does he have to go if he wants to be at school 5 minutes earlier? - Two thirds
Two-thirds of the unknown number is 8/7. What is 7/3 of this number? - One-third 7708
One-third of the pupils go to school by bus. The other half take a tram, and the remaining ten pupils walk. How many students are in the class? - Unknown 7699
If I add a third and a half of an unknown number, I get a number 1 greater than 21/6. What's the number?
- Daughter 7658
Dad is 43 years old, and his daughter is 17 years old. How many years ago was a father three times older than a daughter? - Yellows 7650
Stano got a box of dice. Half of them were brown and blue in color, and the others were red, yellow, and green. There were 12 more reds than yellows, 19 more reds, and 5 more greens than yellows. How many cubes were in the box? - Find unknown
Find an unknown numerator: 4/8 + _/8 = 1 - Another 7568
A cyclist leaves town A, 84 km from town B, and 2 hours later, another cyclist goes from town B to town A at the same average speed of 14 km/h. How far from city B will they fight? - Direction 7554
A freight train departs from one station at an average speed of 36 km/h. 2 hours later, personal pressure leaves in the same direction at an average speed of 48 km/h. After how many hours will the passenger train catch up with the freight train?
- Consecutive 7551
Determine the sum of three consecutive natural numbers such that the sum of the first and third numbers is 368. - Consecutive 7550
The sum of four consecutive integers, five greater than the previous one, is 2. Find these numbers. - Difference 7548
The difference between every two adjacent numbers equals three in a series of four numbers. The sum of these numbers is 60. Specify these numbers. - Two-thirds 7531
On a trip to London, Julie spent one-third of the pounds on the first day, two-thirds of the rest on the second day, and 14 pounds on the last day. How many pounds did Julia have on the trip? - Incorrectly 7492
The test has 50 questions. Four points are counted for each correct answer, 3 points are deducted for an incorrect answer, and 2 points are deducted for an unanswered question. Peter scored 108 points on the test but answered only 6 questions. How many qu
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