如题所述
第1个回答 2021-04-11
202×45的:
202×45=(200+2)×45
=9000+90
=9090
202×45=(200+2)×45
=9000+90
=9090
第2个回答 2021-04-11
202×45
=(200+2)×45
=200×45+2×45
=9000+90
=9090
=(200+2)×45
=200×45+2×45
=9000+90
=9090
第3个回答 2021-04-11
(200+2)x45=(200×45)+(2×45)
=9000+90
=9090
=9000+90
=9090
第4个回答 2021-06-20
202×45
=(200+2)×45
=200×45+2×45
=9000+90
=9090
=(200+2)×45
=200×45+2×45
=9000+90
=9090
第5个回答 2021-04-11
202×45
=(200+2)×45
=200×45+2×45
=9000+90
=9090
=(200+2)×45
=200×45+2×45
=9000+90
=9090