问题
解答题
用递等式计算.
|
答案
(1)50+60×37,
=50+2220,
=2270;
(2)578-(78+98),
=578-78-98,
=500-98,
=402;
(3)(422+28)÷(375-345),
=450÷30,
=15;
(4)570÷5÷2,
=570÷(5×2),
=570÷10,
=57.
用递等式计算.
|
(1)50+60×37,
=50+2220,
=2270;
(2)578-(78+98),
=578-78-98,
=500-98,
=402;
(3)(422+28)÷(375-345),
=450÷30,
=15;
(4)570÷5÷2,
=570÷(5×2),
=570÷10,
=57.