решить по действиям а и б ​

35*17-35*16+65*99-65*98=

35*17=595

35*16=560

65*99=6435

65*98=6370

595-560=35

35+6435=6470

6470-6370=100

23*(79+21)-(23*(123-23))=23×100+23×100=23×(100+100)=23×200=4600

35*17-35*16+65*99-65*98=

35*17=595

35*16=560

65*99=6435

65*98=6370

595-560=35

35+6435=6470

6470-6370=100

23*(79+21)-(23*(123-23))=23×100+23×100=23×(100+100)=23×200=4600