问题
解答题
|
答案
(1)9.26-(4.38+2.26),
=9.26-(2.26+4.38),
=9.26-2.26-4.38,
=7-4.38,
=2.62;
(2)52×76+47×76+76,
=(52+47+1)×76,
=100×76,
=7600;
(3)
x99,29 97
=
x(97+2),29 97
=
x97+29 97
x2,29 97
=29+
,58 97
=29
.58 97