问题
计算题
脱式计算. | ||||
|
答案
(1)77×25÷11
=1925÷11
=175
=42×30
=1260
(3)280+280÷14
=280+20
=300
=1000-20
=980
问答题
脱式计算. | ||||
|
(1)77×25÷11
=1925÷11
=175
=42×30
=1260
(3)280+280÷14
=280+20
=300
=1000-20
=980