3.5+0.4x1.7简便方法

庄砖会183312.4 - 9.6*0.5能用简便方法吗 -
厉索梅13776266707 ______ 不可以的,没有简便方法,只能直接算

庄砖会18330.4x1.7x0.25/1.7简便计算 -
厉索梅13776266707 ______ 0.4x1.7x0.25/1.7=(0.4x0.25)*(1.7/1.7)=0.1*1=0.1

庄砖会18333.4*2.7*1.5的简便算法 -
厉索梅13776266707 ______ 3.4*2.7*1.5 =(3+0.4)x(3x0.9)x(3/2) =(3+0.4)x8.1/2 =3x8.1/2+0.4x8.1/2 =3x8.1/2+0.2x8.1

庄砖会18333.5*0点8+0点2*1点7简算公式 -
厉索梅13776266707 ______ 3.5x0..8+0.2x1.7=0.2x(3.5x4+1.7)=0.2x(14+1+0.7)=0.2x(15+0.7)=0.2x15+0.2x0.7=3+0.14=3.14 谢谢,请采纳

庄砖会1833五年级上册,简便运算20道题 -
厉索梅13776266707 ______ 五年级上册简便算法题 10÷3.14-6.86÷3.14 37.68÷0.25÷4 3.75-(2.75-1.3) 37.56-(18+7.56) 0.77÷14 4.5*9.8 0.7÷0.125 0.7÷0.25 2.5*3.2*12.5 12.5*9.6*0.25 3.75-(2.8-1.25) 37.65÷0.4÷0.25 3.125÷8÷0.125 37.65-4.75-3.25 25*6.4*12.5 3.6*0.25 答案...

庄砖会18333.5*0.4 - 2.4*0.3简便计算 -
厉索梅13776266707 ______ 3.5*0.4-2.4*0.3简便计算=0.4*(3.5-6*0.3)=0.4*1.7=0.68

庄砖会18333.7+0.4*1.6的简便算法 -
厉索梅13776266707 ______ 3.7+0.4*1.6=3.7+0.64=4.34注:这个没有简便的算法,按照加减乘除的优先级进行运算就可以了.

庄砖会18331.4+8.6*3.5用简便算法怎么算 -
厉索梅13776266707 ______ 5x1.4+1.4+8.5)x1.7=10+3.5=13.4+8.6=2=(1+2.6=10+5x0

庄砖会183320.4x1.7一0.4x1.7用简便算法计算. -
厉索梅13776266707 ______[答案] 20.4x1.7一0.4x1.7 =1.7*(20.4-0.4) =1.7*20 =34

庄砖会1833解比例或方程. 3.5+0.4х=9.1 3 4 х - 40%х= 7 10 3 7 : -
厉索梅13776266707 ______ (1)3.5+0.4х=9.1, 3.5+0.4х-3.5=9.1-3.5, 0.4x÷0.4=5.6÷0.4, x=14; (2) 3 4 х-40%х= ...