3.1-1.2= 9.6÷4.8= 3.14×100=
- = - = + = + = 3- =
53= + = = + - =
①0.7 ②0.25 ③ ④
3.14×8=
31.4÷3.14=
16×3.14=
12.56÷3.14=
3.14×64=
100.48÷3.14=
60×3.14=
3.14×202=
0.32= 2.8×0.3= 1-= 1.4+0.16=
2.5-1.3= 9÷5= 2.5×4÷2.5×4= 2.8+7.2×0=
0.6×2.5= 7×0.03= 12.5÷2.5= 2.8×0.3=
4.5÷0.01= 1.8×50= 10-0.13= 0.125×0.25×32=
☆☆☆☆☆