问题
解答题
|
答案
(1)14×70-624÷6,
=980-104,
=876;
(2)32×0.125×2.5,
=4×8×0.125×2.5,
=8×0.125×(4×2.5),
=1×10,
=10;
(3)
-14 5
-1 3
,5 3
=
-(14 5
+1 3
),5 3
=
-2,14 5
=
;4 5
(4)
÷9+5 7
×4 7
,1 9
=
×5 7
+1 9
×4 7
,1 9
=(
+5 7
)×4 7
,1 9
=
×9 7
,1 9
=
;1 7
(5)(
+2 3
×5 7
)÷7 24
,7 8
=(
+2 3
)×5 24
,8 7
=
×7 8
,8 7
=1;
(6)
÷[7 11
-(1-2 5
)],7 10
=
÷[7 11
-2 5
],3 10
=
÷7 11
,1 10
=
×10,7 11
=
.70 11