4+0.7x=102
30×50=
4.8×100=
3600÷90=
0.3÷100=
10﹣0.36=
+ =
60× =
÷ =
× × =
11﹣ ﹣ =
+ = 1- = 1.25× = - =
0.9+99×0.9= 0÷ = 1÷ = -0.5=
0.6×101= 3.2×2.5×12.5=
×4.2= 10.4﹣0.8= 44÷ = 0.11÷0.1=
÷ = 8.7÷29= × = 6×( ﹣ )=
18吨以内的每吨3元;
18吨—25吨的部分,每吨3.8元;
超过25吨的部分,每吨6.7元。
问题:
解答:
89 370 10.1×37