问题
解答题
9×3+451
9×(603-596)
3000-8×9
81÷(45÷5)
答案
(1)9×3+451
=27+451
=478;
(2)9×(603-596)
=9×7
=63;
(3)3000-8×9
=3000-72
=2928;
(4)81÷(45÷5)
=81÷9
=9.
9×3+451
9×(603-596)
3000-8×9
81÷(45÷5)
(1)9×3+451
=27+451
=478;
(2)9×(603-596)
=9×7
=63;
(3)3000-8×9
=3000-72
=2928;
(4)81÷(45÷5)
=81÷9
=9.