问题
解答题
脱式计算.
|
答案
(1)800-57×9,
=800-513,
=287;
(2)(65+16)÷9,
=81÷9,
=9;
(3)230×(140-132),
=230×8,
=1840;
(4)24×5+24×7,
=120+168,
=288.
脱式计算.
|
(1)800-57×9,
=800-513,
=287;
(2)(65+16)÷9,
=81÷9,
=9;
(3)230×(140-132),
=230×8,
=1840;
(4)24×5+24×7,
=120+168,
=288.