问题
解答题
|
答案
(1)88-16×5+78,
=88-80+78,
=8+78,
=86;
(2)2.4×1.5+4.5÷0.75,
=3.6+6,
=9.6;
(3)
+1 6
÷2 7
,3 7
=
+1 6
,2 3
=
;5 6
(4)
÷[3 5
×(0.4+3 11
)],1 3
=
÷[3 5
×3 11
],11 15
=
÷3 5
,1 5
=3.
|
(1)88-16×5+78,
=88-80+78,
=8+78,
=86;
(2)2.4×1.5+4.5÷0.75,
=3.6+6,
=9.6;
(3)
+1 6
÷2 7
,3 7
=
+1 6
,2 3
=
;5 6
(4)
÷[3 5
×(0.4+3 11
)],1 3
=
÷[3 5
×3 11
],11 15
=
÷3 5
,1 5
=3.