Question

4800除以中括号括号41+39括号乘以十二中括号怎么简便

4800除以中括号括号41+39括号乘以十二中括号怎么简便

Answer 1

4800÷[(41+39)×12]
=4800÷80÷12
=60÷12
=5

Answer 2

4800➗[{41➕39｝乘12】
=4800➗80➗12
=60➗12
=5

Answer 3

4800÷[(41+39)*12]=4800÷（80*12）=5