20÷=
16×0.1=
4.3×798×0=
×7.2=
+=
6×-×5=
0×5.16= 9.8+2.6= 502-399=
÷4= × = 20×5=
480÷60= 3.72+6.28= +×1=
235+99= ﹣= 12×÷12×=
0.125×8= 4.5÷5= 3.55+2.45= 6297÷9≈
299×7≈
0.68+19.6= = 0.56÷0.4= 0.125×8=
12= 0.22×200= 100﹣0.86= =
算式: