3.6÷0.4=
=
401÷50≈
30%×90=
0.32=
⑴3.14×52×8﹣3.14×42×7.5 ⑵(+)÷ ⑶4.6×[1÷(2.1﹣2.08)]
7.63﹣0.54+1.37﹣2.46
1.25×2.5×32
11.2× +7.8× +
①7.63﹣0.54﹣(2.46﹣1.37)
②2.1×40%+ ×2.1
③ ÷[( + )× ]
2.76÷0.23=
0.276÷0.023=
27.6÷0.23=
27.6÷230=
5.43+5.57= 125×72= 299÷102≈ 6×÷6×=
5%×56= 33= = =