①64×125+16×125
②(940-35×4)÷16
③64×5-52÷13
④680+21×15-360
⑤9000÷125÷8
⑥600÷[(197-189)×5]
①720-256-44
②243×104-243×4
③25×125×32
④158+36+42+264
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]÷