问题
解答题
|
答案
(1)
+10 13
+1 5
+3 13
,4 5
=(
+10 13
)+(3 13
+1 5
),4 5
=1+1,
=2;
(2)
+(7 25
+5 18
),18 25
=
+(5 18
+7 25
),18 25
=
+1,5 18
=1
;5 18
(3)32×0.25×0.125,
=(4×0.25)×(8×0.125),
=1×1,
=1;
(4)0.75+0.125+
+1 4
,7 8
=(0.75+0.25)+(0.125+0.875),
=1+1,
=2.