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275十103的简便方法

197十275的简便方法197十275=275+200-3=475-3=472

275+49=275+50-1=225-1=224

297-125+103=297+103-125=400-125=275

27.5x46十275x5.4 解:简便计算=275x4.6+275x5.4=275x(4.6+5.4) 乘法分配律=275x10=2750 祝学习进步.

原式=205+100+3 =305+3 =308

105加295加385等於400加385等於785

98x275十202=100x275-2x275+202=27500-550+202=26950-202=27152您好,答题不易如有帮助请采纳,谢谢

266十105的简便计算266十105=266+100+5=366+5=371

7433+275-(2376十567)=7425+275+8-(2333+567+43)=7708-2943=7708-3000+57=4708+57=4765

297十103-68-132=297+103-(68+132)=400-200=200

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