如题所述
第1个回答 2020-08-30
68x12+76x34
=17x4x12+76x2x17
=17x48+152x17
=17x(48+152)
=17x200
=3400
=17x4x12+76x2x17
=17x48+152x17
=17x(48+152)
=17x200
=3400
第2个回答 2020-08-30
68x12+76x34
=34x(24+76)
=34x100
=3400
=34x(24+76)
=34x100
=3400
第3个回答 2020-08-30
68x12+76x34
=68X12+68Ⅹ38
=68ⅹ(12+38)
=68x50
=34ⅹ100
=3400
=68X12+68Ⅹ38
=68ⅹ(12+38)
=68x50
=34ⅹ100
=3400