Math brain-burning quiz tests IQ 1, the triangle in the left picture, how to get the triangle in the right picture by moving three circles?
2, a logical reasoning problem, through your choice to help you analyze your IQ at which level!
One of the classic questions stumped countless people. What should you fill in?
4, this math problem depends on whether you can do it, in fact, it is very simple!
5. The following three circles are filled with numbers, and the rules of the three circles are the same. Can you find the law between them and fill in the missing numbers in the last circle?
answer
1, assuming that 10 triangle is a number from 1 to 10, it should be as follows.
1
2 3
4 5 6
7 8 9 10
1) moves three triangles. This is to put 1 in 7; 8; 9; Below 10 (moved the 1 th triangle)
2) Put 7 in front of 2 (move the second triangle)
3) Put 10 after 3 (move the third triangle).
The triangle now obtained is shown in the figure below.
7 2 3 10
4 5 6
8 9
1
2. 1=5 is 1 followed by 0, followed by a 5, but 0 is ignored (the same is true after that); 2= 15 is 2 followed by 1 followed by a 5; 3=2 15 is 3, followed by 2 1, followed by 5, indicating that 5=432 15.
3. The method of obtaining15 is as follows: the first two digits add 2+3=5, and the added number is multiplied by the second digit 5×3= 15, and the method is as follows: the last two digits are multiplied by 3× 4 = 12 ..................................................................
4. First subtract two digits: 5-3=2, then add two digits: 5+3=8, and the sum of the results is 28, so is the following channels, so 7+3=? First, 7-3=4, then 7+3= 10, which adds up to 4 10.
The square of 5,2 plus the square of 3 equals 4 plus 9 equals13; The square of 7 plus the square of 4 equals 49 plus 16 equals 65; The last one, of course, is that the square of 1 plus the square of 5 equals 1 plus 25 equals 26.
Junior high school math fun burning brain problem 1, flooding the bridge
There are two bridges on the Yellow River, one high and the other low. Both bridges were flooded three times in a row. Gao Qiao was flooded three times, while the short bridge was only flooded 1 time. Why?
Step 2 buy a hat
Two fathers and sons went to buy hats. Why did they only buy three?
3. Combined figures
Can three cards of 2, 1 6 be arranged into an integer divisible by 43?
Step 4: Cross the bridge
The height under the bridge can only be limited to ten meters, but the cargo on board has exceeded ten meters. What should I do?
5. Guess this number
A number removes the first number 13 and the last number 40. What is this number?
Junior high school mathematics answer
(1) When the water receded, Gao Qiao was exposed, and the short bridge was always submerged.
(2) Three generations.
(3) 129 (just flip the card of 6)
(4) Put some big stones on the boat, and it will sink a little.
(5) Forty-three