题目内容
计算,能简算的要简算:
|
| 24×(
| ||||||||||||||||||
100×
| (
| 1
|
(1)
×
×5,
=
×5×
,
=3×
,
=1
;
(2)
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=3;
(3)24×(
+
-
),
=24×
+24×
-24×
,
=16+4-18,
=2;
(4)100×
,
=101×
-1×
,
=100-
,
=99
;
(5)(
+
×
)÷
,
=(
+
)÷
,
=
÷
,
=
;
(6)1
-
÷
-
,
=1
-
-
,
=1
-(
+
),
=1
-1,
=
.
| 3 |
| 5 |
| 4 |
| 7 |
=
| 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×
| 2 |
| 3 |
| 1 |
| 6 |
| 3 |
| 4 |
=16+4-18,
=2;
(4)100×
| 100 |
| 101 |
=101×
| 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 |
| 2 |
=
| 1 |
| 2 |
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