45*13/137+55/137*13
你好,请用简便方法计算!43×136/137+136×54/137+70×68/137 -
43×136/137+136×54/137+70×68/137 =43×136/137+136×54/137+35×136/137 =136/137*(43+54+35)=136/137×132 =17952/137 你的题目可能错了一点,
=[136*(43+59+68)/137 =136*170/137 =23120/137
43×136/137+136×54/137+70×68/137 =43×136/137+136×54/137+35×136/137 =136/137*(43+54+35)=136/137×132 =17952/137 你的题目可能错了一点,
=[136*(43+59+68)/137 =136*170/137 =23120/137
43*136/137 136*59/137 70*68/137=43*136/137 136/137*59 35*136/137=136/137*(43 59 35)=136/137*137=136
解原式=43*136/137+59*136/137+136/137 =(43+59+1)136/137 =103*136/137 =14008/137
十五分之四乘以十三分之七加上十五分之七乘以十三分? -
十五分之四乘以十三分之七加上十五分之七乘以十三分之九,用简便方法为:十五分之四乘以十三分之七加上十五分之七乘以十三分之九,7/15*(4/13+9/13)=7/15*1 =7/15 方法二:15分之4乘13分之7加15分之7乘13分之9 =15分之7×13分之4+15分之7×13分之9 =15分之7×(13分之4+有帮助请点赞。
解:43X(136/137)+136X(59/137)+70X(68/137)=(136/137)X(43+59)+35X(2X68/137)=(136/137)X(43+59+35)=(136/137)X137 =136
45x137分之136+136x137分之59+70x137分之68(简便算法) -
45x137分之136+136x137分之59+70x137分之68 =45x137分之136+59x137分之136+35x137分之136 =(45+59+35)×137分之136 =139×137分之136 =139×(1-137分之1)139-137分之139 =137又137分之135
1.原式=43*136/137+136*59/137+35*136/137=(43+59+35)*136/137=137*136/137=136 2.令2005=t,原式=t*[10000*(t+1)+(t+1)]-(t+1)*[10000*t+t]=t*10001*(t+1)-(t+1)*10001*t=0 4.原式=[(124+2)*37]/124=[124*37+2*37]/124=124*37/124+2*37/124=37+37好了吧!
43乘137分之136加136乘137分之59加70乘137分之68等于多... -
解:43×136/137+136×59/137+70×68/137 =(43×136+136×59+35×2×68)/137 =[43×(136+1)-43+(136+1)×59-59+35×(136+1)-35]/137 =[137×(43+59+35)-(43+59+35)]/137 =[137×137-137]/137 =[137*(137-1)]/137 =136 希望你能满意。
43*137分之136+136*137分之59+70*137分之68 =(136*43+59*136+68*70)/137 =(136*102+68*70)/137 =(68*204+68*70)/137 =68*274/137 =68*2 =136