问题
解答题
简便运算
|
答案
(1)102×32+102×67+102,
=102×(32+67+1),
=102×100,
=10200;
(2)15.91-7.45-6.55,
=15.91-(7.45+6.55),
=15.91-14,
=1.91.
简便运算
|
(1)102×32+102×67+102,
=102×(32+67+1),
=102×100,
=10200;
(2)15.91-7.45-6.55,
=15.91-(7.45+6.55),
=15.91-14,
=1.91.