1) (7-5) * (16-9)
= 2 * 7
= 14
2) (3*2*30+14) / 2
= 194 /2
= 97
3) (4*2*9) / (17-3*5)
= 72/ 2
= 36
4) [ 11 * (98+2)+11] *5
= (11 * 100 + 11) *5
= 1111*5
= 5555
5) (97+4) *9 * (6-1)
= 101 *9* 5
= 4545
6) (23*5-1) * (6/4) /4
= 114 * 1.5 /4
= 42.75
7) (40*4*2+4) / (6+3)
= 324 / 9
= 36
8) (101*3-2) *9 * 3
= 301 *9*3
= 8127
