问题
解答题
计算:
9.6÷0.4÷2.5 (8×
|
答案
(1)
×1 8
+1 6
÷67 8
=
×1 8
+1 6
×7 8
,1 6
=(
+1 8
)×7 8
,1 6
=1×
,1 6
=
;1 6
(2)9.6÷0.4÷2.5
=9.6÷(0.4×2.5),
=9.6÷1,
=9.6;
(3)(8×
+8×4 9
)÷5 9 4 11
=[(
+4 9
)×8]×5 9
,11 4
=1×8×
,11 4
=22.