二点七三乘于九十九的简便运算数学题
2.73x99
=2.73x(100-1)
=2.73x100-2.73
=273-2.73
=270.27
=2.73x(100-1)
=2.73x100-2.73
=273-2.73
=270.27
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第1个回答 2017-10-12
二点七三乘于九十九的简便运算
2.73×99
=2.73×(100-1)
=273-2.73
=273-(3-0.27)
=273-3+0.27
=270+0.27
=270.27
2.73×99
=2.73×(100-1)
=273-2.73
=273-(3-0.27)
=273-3+0.27
=270+0.27
=270.27
第2个回答 2016-09-12
简便运算4*25+6*25 49*99+49 125*88 378+527+73 101*56 36+64-36-64 99*32 101*7616*98+32 1050/15/7 62*101-62 85*82+82*15竖式运算432/24 56*3*9 87*78 544/17837/43 624/26 45*7*12 920/23本回答被网友采纳