问题
解答题
|
答案
1300÷25÷4,
=1300÷(25×4),
=1300÷100,
=13;
(262-26×7)÷40,
=(262-182)÷40,
=80÷40,
=2;
192-(92-38),
=192-92+38,
=100+38,
=138;
99×13+13,
=(99+1)×13,
=100×13,
=1300;
32×25×125,
=4×8×25×125,
=(4×25)×(8×125),
=100×1000,
=100000;
104×28,
=(100+4)×28,
=100×28+4×28,
=2800+112,
=2912.