①
②
③
④
⑤
⑥
⑦
①(2.3+2.3+2.3+2.3)×2.5
②7.2×85%+2.8×0.85
③( + - )×24
④ ÷[ ×( - )]
⑤[( -0.25)× +0.3]÷
①25×32×1.25
②(+0.375)÷(×)
③×+÷7
④6﹣(+)
204﹣78= 120×7= 960÷6=
3.8﹣2.98= + = ÷ =