题目内容
计算下列各题(能简算的写出简算过程)
+
+6.875+
÷
+
×
÷(
-
)×
4.82-5.2÷0.8×0.6.
| 1 |
| 8 |
| 5 |
| 7 |
| 2 |
| 7 |
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 5 |
| 3 |
| 5 |
(1)
+
+6.875+
,
=
+
+6
+
,
=(
+6
)+(
+
),
=7+1,
=8;
(2)
÷
+
×
,
=
×
+
×
,
=
×(
+
),
=
×1,
=
;
(3)
÷(
-
)×
,
=
÷(
-
)×
,
=
÷
×
,
=
×
×
,
=
;
(4)4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92.
| 1 |
| 8 |
| 5 |
| 7 |
| 2 |
| 7 |
=
| 1 |
| 8 |
| 5 |
| 7 |
| 7 |
| 8 |
| 2 |
| 7 |
=(
| 1 |
| 8 |
| 7 |
| 8 |
| 5 |
| 7 |
| 2 |
| 7 |
=7+1,
=8;
(2)
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
| 7 |
| 9 |
| 2 |
| 9 |
=
| 5 |
| 11 |
=
| 5 |
| 11 |
(3)
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 5 |
| 3 |
| 5 |
=
| 1 |
| 3 |
| 10 |
| 15 |
| 6 |
| 15 |
| 3 |
| 5 |
=
| 1 |
| 3 |
| 4 |
| 15 |
| 3 |
| 5 |
=
| 1 |
| 3 |
| 15 |
| 4 |
| 3 |
| 5 |
=
| 3 |
| 4 |
(4)4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92.
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