ldcf.net
当前位置:首页 >> 计算下列各题(能用简便方法的用简便方法计算)0.1... >>

计算下列各题(能用简便方法的用简便方法计算)0.1...

(1)0.125×8.75×8=0.125×8×8.75=1×8.75=8.75;(2)1.8÷0.5÷0.6=1.8÷(0.5×0.6)=1.8÷0.3=6;(3)12.75÷[14.6-(1.3+8.2)]=12.75÷[14.6-9.5]=12.75÷5.1=2.5;(4)0.7×10.1=0.7×(10+0.1)=0.7×10+0.7×0.1=7+0.07=7.07;(5)0.5x-7=28 0.5x-...

=0.89x(100+0.1) =0.89x100+0.89x0.1 =89+0.089 =89.089

(1)18.7-8.8-1.2 =18.7-(8.8+1.2)=18.7-10=8.7;a-b-c=a-(b+c);(2)7.4×9.9+7.4×0.1 =(9.9+0.1)×7.4=10×7.4=74;a×c+b×c=(a+b)×c;(3)8.9×2.5×4=8.9×(2.5×4)=8.9×10=89; a×b×c=a×(b×c);(4)16.81+3.51+6.49 =16.81+(3.51+...

26×10.1 =26x(10+0.1) =26x10+26x0.1 =260+2.6 =262.6 谢谢,请采纳

(1)0.75×99+0.75=0.75×(99+1),=75;(2)56-(23-16)=56+16-23,=13;(3)(8.5-4)×(0.32÷1.6)=4.5×0.2,=0.9;(4)56×[1÷(78?34)]=56×[1÷18],=56×8,=203;(5)0.925×17+9.25×8.3=9.25×1.7+9.25×8.3,=9.25×(1.7+8.3),=9.25×10...

(1)原式=17.92-7.92-0.3 =10-0.3 =9.7 (2)原式=210÷(14×5) =210÷70 =3 (3)原式= × + × =( + )× = (4)原式= ÷( × ) = ×5 =

(1)12.25-3.1+0.85-6.17=12.25+0.85-3.1-6.17=13.1-3.1-6.17=10-6.17=3.83;(2)(1.9-1.9×0.9)÷(3.8-2.8)=(1.9-1.71)÷(3.8-2.8)=0.19÷1=0.19;(3)2.65×1.7+1.35×1.7=(2.65+1.35)×1.7=4×1.7=6.8;(4)0.125×13.8×32×0.25=0.125×...

(1)2.5×(3.8×0.04)=2.5×0.04×3.8=0.1×3.8=0.38;(2)7.69×101=7.69×(100+1)=7.69×100+7.69×1=769+7.69=776.69;(3)(8×5.27)×1.25=8×1.25×5.27=10×5.27=52.7;(4)0.125×72 =0.125×8×9=1×9=9;(5)1.2×0.25+2.8×0.25 =(1.2+2.8)×0...

①25×14+75÷4=25×14+75×14,=(25+75)×14,=100×14,=25;②1÷27×2627=1×72×2627,=9127;③(25-13)÷56=115×65,=225;④4.32+310+0.68+710=(4.32+0.68)+(310+710),=5+1,=6.

(1)0.25×8.75×4,=0.25×4×8.75,=100×8.75,=875;(2)25.8×7+3×25.8,=25.8×(7+3),=25.8×10,=258;(3)10÷0.2÷2.5,=10÷(0.2×2.5),=10÷0.5,=20;(4)21.36÷0.8-12.9,=26.7-12.9,=13.8.

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com