This is also known as the 2022 problem.
The instructions for this assignment are:
Use the digits in the year 2022 and the operations +, -, x, ÷, √ (square root), ^ (raise to a power), “!” (factorial), combinations and permutations — along with parentheses, brackets, or other grouping symbols — to write expressions for the counting numbers 1 through 100.
All four digits must be used in each expression.
Only the digits 2, 0, 2, 2 may be used.
The decimal point may be used, as in .2, .02, etc. (repeating decimals as well)
Multi-digit numbers such as 20 or 202 may be used.
Double (!!), triple (!!!) or larger factorials are not permitted
+183 https://web2.0calc.com/questions/how-to-make-digits-1-100-with-2-0-2-1
+678 1 = (sqrt(2) * sqrt(2)) : 2 + 0
2 = 2 - 2 + 2 - 0
3 = (2^0 + 2)! : 2
4 = sqrt(2^2) - 0 + 2
5 = 2^0 + 2 + 2
6 = 2 + 0 + 2 + 2
7 = 2 + 2 + 2 + 0!
8 = 2 * 2 * 2 - 0
9 = 0! + (2 * 2 * 2)
10 = 22 : 2 - 0!
11 = 22 : 2 + 0
12 = (2 + 2)! : 2 - 0
13 = (2 + 2)! : 2 + 0!
14 = ((2 + 0!)! * 2) + 2
15 = ((2^2)^2) - 0!
16 = ((2^2)^2) + 0
17 = ((2^2)^2) + 0!
18 = 20 - (sqrt(2) * sqrt(2)) + 0
19 = 22 - 2 - 0!
20 = 20 - (2 - 2)
21 = (2 + 2)! - 2 - 0!
22 = 20 + (sqrt(2) * sqrt(2))
23 = 22 + (2 - 0!)
24 = (2 + 2)! + (sqrt(2) * 0)
25 = (2 + 0! + 2)!
26 = (2 + 2)! + 2 - 0
27 = (2 + 2)! + 2 + 0!
28 = 22 + (0! + 2)!
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