问题
解答题
用简便方法计算(要写出简算过程). 3.64+2.7+4.36(
|
答案
(1)3.64+2.7+4.36,
=3.64+4.36+2.7,
=8+2.7,
=10.7;
(2)(
+1 4
)×12,1 6
=
×12+1 4
×12,1 6
=3+2,
=5.
用简便方法计算(要写出简算过程). 3.64+2.7+4.36(
|
(1)3.64+2.7+4.36,
=3.64+4.36+2.7,
=8+2.7,
=10.7;
(2)(
+1 4
)×12,1 6
=
×12+1 4
×12,1 6
=3+2,
=5.