Y=√x, y=x²----------------------------------------------------
1) 28 175 / 35 = 805
2) 403 * 208 = 83 824
3) 1242 / 18 = 69
4) 83 824 + 805 = 84 629
5) 84 629 - 69 = 84 560
6) 84 560 * 7 = 591 920
7) 712 036 - 591 920 = 120 116
300*60:100=180 или
300*0.60=180
1) 12,3*6=73,8
2) 15,7*7=109,9
3) 73,3*109,9/100=примерно 67,15