①
②
③
④
25×26﹣356 320÷80+3.6×1.5 28×(+-) ÷[×(-)]
①60+630÷18
④1.25×6.4×0.25
⑤
⑥
①4×(250-400÷16)
②5.5÷×
③3.6×+6.4×
④7-7×+
⑤+4.9++5.1
⑥(-0.8+)×12.5
②()÷
④-(÷-)
⑤19×(+)×37
⑥÷[(-)×6]
①÷×
②×3.2+6.8÷
③105×(+)
④﹣+﹣
⑤6.4÷[(3﹣1.4)×]
①21×16÷14+76
②9- -
③ ×0.8×12.5
④48×( + - )
⑤7.6×9.4- +7.6×1.6
⑥ ×[ ÷(0.4- )]
①38×12+189÷9
②7.83× -0.83×
③23.5÷(4.75-4.5× )
④3.62- +1.38-