问题
解答题
脱式计算:
|
答案
(1)800-600÷20,
=800-30,
=770;
(2)18×(537-488),
=18×49,
=882;
(3)25×37×4,
=25×4×37
=100×37,
=3700;
(4)720÷16÷5,
=720÷(16×5),
=720÷80,
=9.
脱式计算:
|
(1)800-600÷20,
=800-30,
=770;
(2)18×(537-488),
=18×49,
=882;
(3)25×37×4,
=25×4×37
=100×37,
=3700;
(4)720÷16÷5,
=720÷(16×5),
=720÷80,
=9.