|
(1)
×3 5
×5,4 7
=
×5×3 5
,4 7
=3×
,4 7
=1
;5 7
(2)
÷[(4 5
+1 3
)×2 5
],4 11
=
÷[4 5
×11 15
],4 11
=
÷4 5
,4 15
=3;
(3)24×(
+2 3
-1 6
),3 4
=24×
+24×2 3
-24×1 6
,3 4
=16+4-18,
=2;
(4)100×
,100 101
=101×
-1×100 101
,100 101
=100-
,100 101
=99
;1 101
(5)(
+2 3
×4 15
)÷5 6
,20 21
=(
+2 3
)÷2 9
,20 21
=
÷8 9
,20 21
=
;14 15
(6)1
-1 2
÷5 8
-25 28
,3 10
=1
-1 2
-7 10
,3 10
=1
-(1 2
+7 10
),3 10
=1
-1,1 2
=
.1 2