3.6x25%=3.6x0.25=3.6x(1/4)=0.9如有帮助请采纳,如对本题有疑问可追问,Good luck!
1. 把0.25化为分数来进行简便运算,2. 利用4x0.25=1来进行简便运算.1. 把0.25化为分数来进行简便运算3.6*0.25 =3.6*1/4 =0.9,2. 利用4x0.25=1来进行简便运算3.6*0.25 =(4-0.4)*0.25 =4*0.25-0.4*0.25 =1-0.1 =0.9
3.6*0.25=3.6*1/4=0.9
0.9
3.6x0.25=0.9x4x0.25=0.9x(4x0.25)=0.9x1=0.9
展开全部3.6X0.25=3.6X1/4=0.9
把3.6分成0.9*4,0.25*4*0.9=0.9
0.25乘以3.6用竖式怎么计算 0.25*3.6=0.9 有用请采纳.
3.6x0.25=(4x0.9)x0.25=(4x0.25)x9=1x9=9
6.4X0.25+3.6/4=6.4X0.25+3.6X0.25=(6.4+3.6)X0.25=10X0.25=2.5(这是运用了乘法分配律.关键是要知道一个除以1/4等于这个数乘以0.25.)