[" Estimate cachof the following using gerieral rule: "],[[" (a) "730+998," (b) "796-314," (c) "12,904+2,888," (d) "28,292-21,496]]

Estimate each of the following using general rule:(a) 730 + 998 (b) 796 – 314 (c) 12,904 +2,888 (d) 28,292 – 21,496Make ten more such examples of addition, subtraction and estimation of their outcome.