问题
解答题
|
答案
(1)7×7-9,
=49-9,
=40;
(2)45-2×7,
=45-14,
=31;
(3)12+12÷12,
=12+1,
=13;
(4)0÷16×9=0;
(5)13×6-70,
=78-70,
=8.
|
(1)7×7-9,
=49-9,
=40;
(2)45-2×7,
=45-14,
=31;
(3)12+12÷12,
=12+1,
=13;
(4)0÷16×9=0;
(5)13×6-70,
=78-70,
=8.