(霞浦县)怎样算简便就怎样算. ①20.3×16﹣4560÷15 ②2.5×0.125×32 ③6.3× ④.
(1)238÷238(2)
(1)×39 + ×27 (2)18.25×11 - 17÷ (1 - )
(1)64× (2) 54÷17
(1)×8(2)75×
计算:(9+7)÷(+)