问题
解答题
|
答案
(1)5×
-4 9 4 9
=
-20 9 4 9
=
;16 9
(2)
×35+65÷41 4
=
×35+65×1 4 1 4
=
×(35+65)1 4
=
×1001 4
=25;
(3)(
+1 6
)×6×51 5
=
×6×5+1 6
×6×51 5
=5+6
=11;
(4)
÷3 4
-9 10
×5 14 7 15
=
+5 6 1 6
=1;
(5)4÷
-0.68 3
=1.5-0.6
=0.9;
(6)
×3 4
+5 6
×3 4 1 6
=
×(3 4
+5 6
)1 6
=
×13 4
=
.3 4