2.5+3.2+12.5简便运算

葛玲疤47132.5*3.2四年级的简算法 -
邹彼泼18283638779 ______ 2.5*3.2 =2.5*4*0.8 =10*0.8 =8 或者: 2.5*3.2 = 2.5*8*0.4 =20*0.4 =8

葛玲疤47132.5乘以3.2乘以12.5 -
邹彼泼18283638779 ______ 2.5*3.2*12.5=2.5*4*0.8*12.5=10*10=100

葛玲疤4713简便计算.2.25乘0.9除2.25乘0.9.3.2乘(2.5加12.5) -
邹彼泼18283638779 ______ 2.25乘0.9除2.25乘0.9= 2.25除2.25乘0.9乘0.9=0.813.2乘(2.5加12.5)=3.2x2.5+3.2x12.5=0.8x4x2.5+0.4x8x12.5=0.8x10+0.4x10=80+40=120

葛玲疤471312.5x3.2的脱式计算 -
邹彼泼18283638779 ______ 12.5*3.2 =12.5*3+12.5*0.2 =37.5+2.5 =40

葛玲疤47132.5x(3.2+1.8)的简便方法 -
邹彼泼18283638779 ______ 2.5x(3.2+1.8) =2.5x5 =12.5

葛玲疤4713能简算就简算.快点、谢谢!!! 2.5乘3.2乘12.5 178乘 -
邹彼泼18283638779 ______ 2.5*3.2*12.5=2.5*4*0.8*12.5=10*10=100178*178/179=179*178/179-178/179=178-178/179=177又1/179147*9.8+1.47*30-147*0.1=147*(9.8+0.3-0.1=147*10=1470) 注:分子/分母

葛玲疤4713数学你能用多少种方法计算? 12.5*3.2
邹彼泼18283638779 ______ 第一种:12.5*3.2=12.5*(3+0.2)=12.5*3+12.5*0.2=37.5+2.5=40, 第二种:12.5*3.2=12.5*(4-0.8)=12.5*4-12.5*0.8=50-10=40, 第三种:12.5*3.2=25/2 * 16/5=5*8=40. 希望对你有所帮助,望采纳,谢谢

葛玲疤47133.25乖以括号2.5+12.5用简便算 -
邹彼泼18283638779 ______ 3.25*(2.5+12.5)=3.25*15=48.75

葛玲疤4713用简便法计算: 2.5*3.2*12.5 = = 4.8÷2.5÷0.4 = = -
邹彼泼18283638779 ______ 2.5*3.2*12.5 4.8/2.5/0.4 =(2.5*4)*(12.5*0.8) =1.92/0.4 =10*10 =4.8 = 100

葛玲疤47134✖️0.8➕2.5✖️12.5的简便方法? -
邹彼泼18283638779 ______ 简便计算过程方法如下 解:4*0.8+2.5*12.5 =3.2+31.25 =34.45