问题
解答题
能简便计算的要简便计算
5947-35×64
39×(396÷6)
487+199
823-699.
答案
(1)5947-35×64
=5947-2240
=3707;
(2)39×(396÷6)
=39×66
=2574;
(3)487+199
=487+200-1
=287-1
=286;
(4)823-699
=823-(700-1)
=823-700+1
=123+1
=124.
能简便计算的要简便计算
5947-35×64
39×(396÷6)
487+199
823-699.
(1)5947-35×64
=5947-2240
=3707;
(2)39×(396÷6)
=39×66
=2574;
(3)487+199
=487+200-1
=287-1
=286;
(4)823-699
=823-(700-1)
=823-700+1
=123+1
=124.