问题
解答题
细心算一算
1800-400÷25×100
200-(76+40×3)
870÷5+30×23.
答案
(1)1800-400÷25×100,
=1800-16×100,
=1800-1600,
=200;
(2)200-(76+40×3),
=200-(76+120),
=200-196,
=4;
(3)870÷5+30×23,
=174+690,
=864.
细心算一算
1800-400÷25×100
200-(76+40×3)
870÷5+30×23.
(1)1800-400÷25×100,
=1800-16×100,
=1800-1600,
=200;
(2)200-(76+40×3),
=200-(76+120),
=200-196,
=4;
(3)870÷5+30×23,
=174+690,
=864.