题目内容
计算下面各题,能简算要简算
| (
| 99×
| ||||||||||||||||||
(32+
|
| 2-
|
(1)
×
+
÷
+
,
=
×
+
×
+
×1,
=(
+
+1)×
,
=2×
,
=
;
(2)(
-
)×
,
=
×
,
=
;
(3)99×
,
=(98+1)×
,
=98×
+1×
,
=7+
,
=7
;
(4)(32+
)÷4,
=(32+
)×
,
=32×
+
×
,
=8+
,
=8
;
(5)
÷
×(
-
),
=
÷
×
,
=
×
,
=
;
(6)2-
÷
-
,
=2-
-
,
=2-(
+
),
=2-2,
=0.
| 1 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 8 |
| 3 |
| 3 |
| 8 |
=
| 1 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 8 |
=(
| 1 |
| 4 |
| 3 |
| 4 |
| 3 |
| 8 |
=2×
| 3 |
| 8 |
=
| 3 |
| 4 |
(2)(
| 1 |
| 4 |
| 1 |
| 10 |
| 1 |
| 3 |
=
| 3 |
| 20 |
| 1 |
| 3 |
=
| 1 |
| 20 |
(3)99×
| 7 |
| 98 |
=(98+1)×
| 7 |
| 98 |
=98×
| 7 |
| 98 |
| 7 |
| 98 |
=7+
| 7 |
| 98 |
=7
| 7 |
| 98 |
(4)(32+
| 4 |
| 7 |
=(32+
| 4 |
| 7 |
| 1 |
| 4 |
=32×
| 1 |
| 4 |
| 4 |
| 7 |
| 1 |
| 4 |
=8+
| 1 |
| 7 |
=8
| 1 |
| 7 |
(5)
| 10 |
| 9 |
| 5 |
| 6 |
| 5 |
| 4 |
| 7 |
| 12 |
=
| 10 |
| 9 |
| 5 |
| 6 |
| 2 |
| 3 |
=
| 4 |
| 3 |
| 2 |
| 3 |
=
| 8 |
| 9 |
(6)2-
| 6 |
| 7 |
| 9 |
| 14 |
| 2 |
| 3 |
=2-
| 4 |
| 3 |
| 2 |
| 3 |
=2-(
| 4 |
| 3 |
| 2 |
| 3 |
=2-2,
=0.
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