(
37-0.37×8.28-3.7×0.172 (2
[6-(
[0.75-(2
|
(1)(
+1 30
+1 35
)×21 63
,1 7
=
×1 30
+15 7
×1 35
+15 7
×1 63
,15 7
=
×1 2
+1 7
×3 7
+1 7
×5 21
,1 7
=(
+1 2
+3 7
)×5 21
,1 7
=(
+21 42
+18 42
)×10 42
,1 7
=
×49 42
,1 7
=
;1 6
(2)37-0.37×8.28-3.7×0.172,
=3.7×10-3.7×0.828-3.7×0.172,
=(10-0.828-0.172)×3.7,
=[10-(0.828+0.172)]×3.7,
=[10-1]×3.7,
=10×3.7-3.7,
=37-3.7,
=33.3;
(3)(2
-11 4
)×1.6÷(1.82×3 5
),1 7
=(
-45 20
)×32 20
÷8 5
,13 5
=
×13 20
×8 5
,5 13
=
;2 5
(4)[6-(
+1 12
)×30]÷(11 15
×0.9),1 4
=[6-(
+5 60
)×30]÷(4 60
×5 4
),9 10
=[6-
×30]÷9 60
,9 8
=[6-
]×9 2
,8 9
=
×3 2
,8 9
=
;4 3
(5)[0.75-(2
-11 3
)÷4]÷[(11 9
+21 2
)÷22 3
-1 2
],5 6
=[
-(23 4
-13 9
)×1 9
]÷[(11 4
+23 6
)÷4 6
-5 2
],5 6
═[
-3 4
×11 9
]÷[1 4
×25 6
-2 5
],5 6
=[
-27 36
]÷[11 36
-10 6
],5 6
=
÷4 9
,5 6
=
×4 9
,6 5
=
.8 15