题目内容
计算下面各题(能简便计算的要简便计算).
(1)12×(124-85)÷26
(2)5.5×17.3+6.7×5.5
(3)
+
+
+
(4)1-
÷
-
.
(1)12×(124-85)÷26
(2)5.5×17.3+6.7×5.5
(3)
| 7 |
| 13 |
| 5 |
| 6 |
| 6 |
| 13 |
| 1 |
| 6 |
(4)1-
| 3 |
| 13 |
| 9 |
| 26 |
| 1 |
| 5 |
(1)12×(124-85)÷26
=12×39÷26,
=468÷26,
=18;
(2)5.5×17.3+6.7×5.5
=(17.3+6.7)×5.5,
=24×5.5,
=132;
(3)
+
+
+
=(
+
)+(
+
),
=1+1,
=2;
(4)1-
÷
-
=1-
-
,
=
-
,
=
.
=12×39÷26,
=468÷26,
=18;
(2)5.5×17.3+6.7×5.5
=(17.3+6.7)×5.5,
=24×5.5,
=132;
(3)
| 7 |
| 13 |
| 5 |
| 6 |
| 6 |
| 13 |
| 1 |
| 6 |
=(
| 7 |
| 13 |
| 6 |
| 13 |
| 5 |
| 6 |
| 1 |
| 6 |
=1+1,
=2;
(4)1-
| 3 |
| 13 |
| 9 |
| 26 |
| 1 |
| 5 |
=1-
| 2 |
| 3 |
| 1 |
| 5 |
=
| 1 |
| 3 |
| 1 |
| 5 |
=
| 2 |
| 15 |
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