1185+1733+115+3267 67×(95-1440÷24) 101×99 4920÷24+3250÷125 24×57+43×24 247×59-3586.
(1)1185+1733+115+3267, =(1185+115)+(1733+3267), =1300+5000, =6300; (2)67×(95-1440÷24), =67×(95-60), =67×35, =2345; (3)101×99, =(100+1)×99, =100×99+1×99, =9900+99, =9999; (4)4920÷24+3250÷125, =(4920×5)÷(24×5)+(3250×8)÷(125×8), =24600÷120+26000÷1000, =205+26, =231; (5)24×57+43×24, =24×(57+43), =24×100, =2400; (6)247×59-3586, =14573-3586, =10987. |