20 + [(21+23)/22]2 = 20 + [44/22]2 = 20 + 22 = 20 + 4 = 24
Wat is the factors of all composite
Impossible, as there are not enough numbers to cover all squares.
One example. 12*8+3+7-6 = 100 The key is finding sets of 10s
Yes.
If you must use all digits precisely once then the answer is: 8642, 8624, 8462
There are 210 of them, and I regret that I do not have the time to list them all.
add them all together and then divide the answer by the number of numbers.
234, 243, 324, 342, 423, and 432.
1
Using only sums and differences, and not necessarily all four numbers, 1, 3, 9 and 27 will make all numbers from 0 to 40.
Impossible, as there are not enough numbers to cover all squares.
One example. 12*8+3+7-6 = 100 The key is finding sets of 10s
You have 4 options for the first digit, 3 for the second, 2 for the third. Multiplying all this you get 4 x 3 x 2 = 24 options.
Yes.
If you must use all digits precisely once then the answer is: 8642, 8624, 8462
All numbers can be expressed using exponents.
There are 210 of them, and I regret that I do not have the time to list them all.
9,876,543,210