0.42÷7= 2÷5= 1÷0.2=
8.4÷2.1= 1.26÷0.6= 0.9×100÷1000=
9.7﹣4.65=
28.5÷0.15=
1.7×0.24≈(得数保留两位小数)
5.5×0.02=
0×0.964=
0.5×2.4=
40×0.09=
0.8×0.04=
0.36×2=
3.3×0.3=
0.125×0.8=
0.8×0.7=
0.14×0.3=
3.2×0.3=
0.16×0.5=
3.8+2.07= 3-1.98= 4.34×0= 5.5÷0.1=
4×0.25= 14÷0.07= 0.64÷0.8= 0.25×4÷0.25×4=
7-5.2= 7.21+0.53= 6.97-3.97= 15-4.28=
7.9+5.5 = 5.7+0.03= 3.58-2.87= 2.05+8.02=