问题
解答题
计算题: (1)0.125×7.37+
(2)1
(3)(4
(4)246×
|
答案
(1)0.125×7.37+
×3.63-12.5×0.1,1 8
=0.125×(7.37+3.63-10),
=0.125×1,
=0.125;
(2)1
×(24 17
-2 3
)+3 4
÷11 12
,17 21
=
×21 17
+23 12
×11 12
,21 17
=
×(21 17
+23 12
),11 12
=
×21 17
,34 12
=3.5;
(3))(4
-7 8
+26)÷13 16
×13 16
,1 74
=(
×39 8
-16 13
×13 16
+26×16 13
)×16 13
,1 74
=(6-1+32)×
,1 74
=37×
,1 74
=0.5;
(4)246×
,345345345345 123123123123
=246×
,1001001001×345 1001001001×123
=246×
,345 123
=690.