(1)5044÷26×27, =194×27, =5238; (2)47×99+47, =47×(99+1), =47×100, =4700; (3)326+437+174+663, =(326+174)+(437+663), =500+1100, =1600; (4)(40+6)×25, =40×25+6×25, =1000+150, =1150; (5)88×25, =(22×4)×25, =22×(4×25), =22×100, =2200; (6)6080÷[(416+24×8)÷8], =6080÷[(416+192)÷8], =6080÷[608÷8], =6080÷608×8, =10×8, =80. |