面积/m2
1
25
100
……
质量/g
2500
10000
2﹣50%=
3.14×2=
× =
+ =
1÷25%=
5.5× =
6.04÷0.2=
× ÷ =
①3: =4.2:x
②
③5(x-30%)=
①7.63﹣0.54﹣(2.46﹣1.37)
②2.1×40%+ ×2.1
③ ÷[( + )× ]
请在图中画出同学们从营地到射击场的路线图。