①103-128÷8
②1.02÷(5.2-3.5 )
③
④
⑤
⑥
0.25×3.2×1.25
18.15-(3.5-1.75)
①0.96×÷ ②÷4+4÷ ③2019×
④×13+×25 ⑤(+2.1)×÷0.9 ⑥0.5+÷(0.75+)
22.8×36%-2.8×0.36
660-630÷6×5 7.2×0.75+7.93÷2.6
⑴ ⑵
⑶ ⑷
①
②
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- )]