问题
解答题
简算 16.45-(4.45+
36×(
|
答案
(1)16.45-(4.45+
),3 7
=16.45-4.45-
,3 7
=12-
,3 7
=11
;4 7
(2)36×(
+2 3
-0.5),3 4
=36×
+36×2 3
+36×0.5,3 4
=24+27+18,
=69;
(3)
×0.75+4 7
÷3 4
-7 3
,3 4
=(
+4 7
-1)×3 7
,3 4
=0×
,3 4
=0.