0.3+7.7=
2.4×5=
×=
×4÷×4=
6.04-1.7=
32×25%=
0.27÷0.3=
+2÷-2=
3×23%=
0.2÷20%=
45.5%×10=
3.14×8=
0.52-0.42=
5÷20%=
5m:35cm(求比值)=
208+798=
10-=
27×=
0.064÷0.08=
÷50%=
4.8×0.25×4=
÷=
11.75-1.7=
5.9+3.1= 3-1.8= 2.7÷3= 3.5×3=
+ = 3- = × = 5÷ =
÷ =
⑴3.48+6.52=
⑵3.6÷0.04=
⑶1.6×5=
⑷0.9-0.26=
⑸
⑹×15=
⑺
⑻
⑼25%×16=
⑽3÷15=
⑾70×13=
⑿21÷1000=
⒀2-=
⒁0.48÷=
⒂a-0.2a=
⒃
⒄2π=
⒅72=
⒆63.2÷6.9≈
⒇802-205≈
□O□=□(只)