括号76+230括号乘四的简便运算
第1个回答 2018-03-23
(76+230)×4
=306×4
=300×4+6×4
=1200+24
=1224
=306×4
=300×4+6×4
=1200+24
=1224
第2个回答 2018-03-23
(76+230)x4
=(300+6)x4
=300x4+6x4
=1200+24
=1224本回答被网友采纳
=(300+6)x4
=300x4+6x4
=1200+24
=1224本回答被网友采纳