问题
解答题
脱式计算:
|
答案
(1)(315×4-364)÷7,
=(1260-364)÷7,
=896÷7,
=128;
(2)21×9-962÷74,
=189-13,
=176;
(3)2600÷(1100-36×25),
=2600÷(1100-900),
=2600÷200,
=13;
(4)17×(290-288÷2),
=17×(290-144),
=17×146,
=2482.
脱式计算:
|
(1)(315×4-364)÷7,
=(1260-364)÷7,
=896÷7,
=128;
(2)21×9-962÷74,
=189-13,
=176;
(3)2600÷(1100-36×25),
=2600÷(1100-900),
=2600÷200,
=13;
(4)17×(290-288÷2),
=17×(290-144),
=17×146,
=2482.