how to make 4 using 2,0,2,3 in order

1 answer

2023 - 202 = 1821 - 821 = 1000 - 100 = 900 - 90 = 810 - 108 = 702 - 207 = 495 - 594 = -99 + 93 = -6 + 10 = 4