Since 98 is 100 minus 2, you can think of this as 136 + 100 - 2, or 236 - 2, the answer being 234.
596 plus 596 minus 236 plus 8942 is 9898.
236 + 89 = 325
It is 98*6 = 588
14x20
236
204
34 + 98 + 98 + 87 + 32 = 349
6754
829
234+2
98 plus 65 equals 163.