0.8×7.3×1.25×21×2.1×27怎么简便计算？
0.8×7.3×1.25×21×2.1×27怎么简便计算?
0.8x7.3x1.25x21x2.1x27 =(0.8x1.25)x(21x2.1)ⅹ(7.3x27)=1x44.1x197.1 =8692.11。
7.3×1.25×0.8简便方法计算?
=7.3×1 =7.3
...2)64×4.5+36×4.5 (3)1.25×2.5×0.8 (4)1.5×...
脱式计算,能简便计算的要简算. (1)13÷0.4÷2.5 (2)64×4.5+36×4.5 (3)1.25×2.5×0.8 (4)1.5×101-1.5 (5)14.64+3.7×2.8 (6)2.8×7.3+0.27×28.
简便计算 2.61×1.4+8.6 1.25×7.3×0.8 19.4×3.7+...
2.61*(1.4+8.6)=2.61*10=26.1 1.25*0.8*7.3=1*7.3=7.3
1.25×7.3×0.8等于?要简便
回答：1点25乘0点8乘7点3
1.25乘7.3乘o.8的简便运算
=1.25*0.8*7.3=1*7.3=7.3
1.25×7.3+12.5×0.27的简便方法
这个一眼就要看到7.3+2.7＝10，然后在等式里实现！1.25×7.3+1.25×10×0.27 ＝1.25×（7.3+2.7）＝12.5
1.25×7.3×0.8如何简便计算?
1.25x7.3x0.8 =1.25x0.8x7.3 =1x7.3 =7.3
1.25×7.3 12.5×0.27简便计算?
此题重点:12.5x0.27可转化为1.25x2.7两式结果不变。1.25x7.3+12.5x0.27 =1.25x7.3+1.25x2.7 =1.25x(7.3+2.7)=1.25x10 =12.5 ...
...3.6*1.25+0.32/4 7.8 - 1.9+8.2 - 8.1 7.3*1.24+8.78*...
1、=3.4+3.7=7.12、=2.4*3/4+0.5=1.8+0.5=2.33、=3.6*5/4+0.08=4.5+0.08=4.584、=(7.8+8.2)-(1.9+8.1)=16-10=65、=7.3*(1.24+8.78)=7.3*10.02=7.3*(10+...