①480÷[18.8-(10.5+0.3)]
②125×88
③360÷25÷4
④17.8-(19-3.2)
⑤102×36-72
⑥12-1.56-0.44
2.3×1.1= 16-0.9= 0.8+1.06= 0.25×0.4=
1.5×6= 5.7+4.3= 4.5×12= 0.5×6.8=
①305×29=
②590×700=
③※187×46=
④※353÷17=
①800÷25
②640÷40