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
①143+236+157
②28+136+264+172
③248-123-27
④167+49+33+151
⑤369-89-111
⑥486-76-24-186
①4×36×25
②75×43+25×43
③101×48-48
④99×14
⑤25.3-4.62-5.38
⑥14.2-6.28+4.2-3.72