问题
计算题
脱式计算。 | ||||
|
答案
(1)50×(180-130)÷20
=50×50÷20
=2500÷20
=125
=960-24×7
=960-168
=792
(3)170×[680÷(320-286)]
=170×(680÷34)
=170×20
=3400
=574-140÷14
=574-10
=564
脱式计算。 | ||||
|
(1)50×(180-130)÷20
=50×50÷20
=2500÷20
=125
=960-24×7
=960-168
=792
(3)170×[680÷(320-286)]
=170×(680÷34)
=170×20
=3400
=574-140÷14
=574-10
=564