=
1.2÷=
×0.375=
0.3×=
25%×4=
3.7+15%=
72÷80%=
-×0=
÷=
37.5%-=
32×3.14=
×=
520×20% =
3÷0.1% =
×30= 0.5+ = =
= =
① ×[0.75﹣( ﹣25%)]÷1.25
②6.37×1.25﹣1 +4.63×125%
③7.09× +0.225×6﹣60%×0.64
④ ×3+ ×25+ ×
⑤
⑥