1﹣0.01=
7÷1.4=
720﹣80=
90÷70=
2.25+ =
16×50%=
×3.6=
25.5÷0.1=
+ =
﹣ =
2﹣ ﹣ =
1.25×8=
( ): =
4×(0.6+1.9)=
(0.18+ )÷9=
× × =
4.15小时=4小时分.
①6.4x﹣5.7x=6.37
②x÷ = ÷ .
① =6:
② :x= : .
①0.625:
②1:0.25
③ : .
① ×6﹣4÷
②7.2﹣4.28+2.8﹣0.72
③53.4÷[1÷(3.1﹣3.09)]
④ ÷ ﹣ ×
⑤ ÷[( + )÷15]
⑥36×0.71+3.6×2.9.
看图列式
①二班栽树多少棵?
②三班栽树多少棵?
③二班和三班共栽树多少棵?
请你选择你最喜欢的两个问题,在后面括号里打“√”,并列式解答你最喜欢的这两个问题.