3.2+6.8= ×33= 39×101= 0.36÷0.6= 705﹣398≈
-= 3.6÷= 5.4×10%= 0.12= +×3=
1÷= ×= += -=
1.25×0.08=
+1=
6.97﹣1.09=
+=
5+3﹣5+3=
﹣=
3.34×99+3.34=
4.8× = 3.6÷0.9= ÷4= ÷ × =
125%×8= 38﹣1.9= 3.14×5= 1- =
×12=
0.4﹣0.25=
0.25×4=
42÷ =
1.5÷0.5=
﹣ =
+ =
31×497≈
+ = 50÷50%= = 3 -1.125=
1.9÷2.5÷0.4= ( )×18= = 1- =
从图中可以看出:
1,3,2,6,4,9,8,,,15,,18,……