1.9+2.88=
9.82-3.59=
5.31×1.4=
0.4+5.6=
125×4=
31.4÷1000=
0.6×100=
900÷25÷4=
0÷180=
25×32=
2.2+7.8-7.8+2.2=
①15.4﹣3.68=
②7.65+4.96=
③3.05×18=
④0.74×2.5=
2560000265万 125×(8×80)125×8+125×80
320×2032×200 192÷8÷4192÷(8÷4)