6894-589= 24.7-6.9= 0.25×6.4×0= 0.75÷0.1=
÷6= 2.4÷60%= 7.6÷2.5÷0.4=
= 36÷ = 0.78×99+0.78=
504×59≈ 5850÷72≈ 2.4× ÷2.4× = ( ): =
①408×24-9250÷37
②59.86-4.76-5.24+10.14
③12.5×3.2×0.25
④127-4.5÷0.09+0.23
⑤60%×
⑥