222×85+111×30
=111×170+111×30
=111×(170+30)
=111×200
=22200
42×61+42×14+58×75
=42×(61+14)+58×75
=42×75+58×75
=(42+58)×75
=100×75
=7500
222×85+111×30
=111×170+111×30
=111×(170+30)
=111×200
=22200
42×61+42×14+58×75
=42×(61+14)+58×75
=42×75+58×75
=(42+58)×75
=100×75
=7500