67*1/4+5/2*3.75-9/2*0.25
67*1/4+5/2*3.75-9/2*0.25
67*1/4+5/2*3.75-9/2*25% 简便运算
67*1/4+2又1/2*3.75-4又1、2*25% 简便运算哦!
1+1+2+2+3+3+4+4+5+5+6+67+78+8+9+9
15-3.75×10%-5/8和9/5×25%+1/4×2.2-0.25
-(-1又1/2)+(-1又1/4)+(+3又3/4)+(-0.25)-(+3.75)-4.5
(-0.5)-(-2 4分之1)+3.75-(+5 2分之1)
3/2-5/4+15/4-0.25-3.75-4.5 简便计算
1+2+3+4+5+6+7+8+9+10×1×2×3×4×5×67×8×9×10=
3.75-[(-8又3/7)+(-7.5)+(-21又4/7)+(3又1/2)]+0.25=?
67*0.25+2.5*3.75-4.5*0.25简算
求比值,21:35,5/6:4/9 0.8:0.32 0.4:2/3 1/4:0.25