12.5÷5+2.5×190=
3.2÷0.2= 25×0.02= 81÷100= 0×0.98=
5.14-1.4= 6×0.25= 0.24÷0.3= 4.5×10+45=
=(2.7×10)÷(1.5×)
=÷
=
=(3.9×)÷(0.13×100)
=÷
=
①397+180÷15
②4.4×0.5-80÷100
③73×9.9+7.3
④ ×(1- + )
⑤75×[( - )÷ ]
28+69= 920-550= 19×50= 910÷70=
79-0.9= 6.4÷0.2= 35×20%=
0.25×0.4= 0.6÷0.5= 8.9+1.11= 74.3-0.28=
45÷0.9= 4÷25×25÷4= 2÷3=
= =(写最简分数)
9.129.8 0.97×1801.8×9.7
6.44÷1.56.44 2.9×0.252.9÷4