①=
②=
③=
④=
⑤=
⑥=
⑦59×41≈
⑧632÷69≈
4:1.25=x:0.75
0.125×80=
1:0.25=
1÷10%=
40%×2.5=
15.6﹣2.8×4
× = ÷ = 125×1.6= 12.74- =
32×20%= + = 73.2×40%= - =
×3= × = 0×( - )= 15÷ =
1- + = 8.1+ = ( + )×24= 1.25×8=
×18= ÷ = × = 8÷ =
5.4× = 3.5÷ = × ×3= ÷ × ÷ =
45×0.945 3.8﹣3.7 ÷1