如题所述
132x21+51x29
=132x7x3+3x17x29
=924x3+3x493
=(924+493)x3
=1417x3
=4251
=132x7x3+3x17x29
=924x3+3x493
=(924+493)x3
=1417x3
=4251
温馨提示：答案为网友推荐，仅供参考
第1个回答 2015-06-17
130×20+42+132+50×30-50+29=4341
