67﹣40=
15×6=
3.5÷7=
16+25=
-=
÷=
×21=
+=
=
12.5×8=
3.14×102=
144÷12=
33÷11%=
5.6+4.4= 70÷0.01= 6.5×= 2-45%=
17×= = 75%÷= =
0.57+4.3=
×=
73×101=
-=
2.4÷0.1=
2.6×-×0.6=
307﹣299= += ×0.63= A﹣A=
5.2﹣0.6= ÷= ×= 4.25×4=
( )+( )=一本书的总页数
( )-( )=大米比面粉多用的钱数
加法算式:
乘法算式:
①80%x﹣0.4×1.2=1.2
②(27.5﹣3.5)÷x=4
③4:(1﹣x)=
④