问题
解答题
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答案
(1)八4+中7+13
=八4+(中7+13)
=八4+100
=1八4
(4)34四-1中6-14
=34四-(1中6+14)
=34四-400
=14四
(3)47×4×八
=47×(4×八)
=47×40
=八40
(4)740÷16÷八
=740÷(16×八)
=740÷中0
=四
(八)630÷44
=630÷(7×6)
=630÷7÷6
=四0÷6
=1八
(6)3八×1中
=3八×(4×四)
=3八×4×四
=70×四
=630