用递等式计算(能简算的要用简便方法计算). 4.32+3.2+5.68 &...

2025-05-17 13:07:44
推荐回答(1个)
回答1:

(1)4.32+3.2+5.68
=4.32+5.68+3.2,
=10+3.2,
=13.2;

(2)79×101-79
=(101-1)×79,
=100×79,
=7900;

(3)132+25×8
=132+200,
=332;

(4)20-

3
25
×5
=20-
3
5

=19
2
5


(5)(0.125×8-0.5)×4
=(1-0.5)×4,
=0.5×4,
=2;

(6)(0.25+
5
8
)÷(
7
4
-
7
8

=(
2
8
+
5
8
)÷(
14
8
?
7
8
),
=
7
8
÷
7
8

=1.