题目内容
脱式计算,能简算的要简算.
(1)(
+
)÷
-
(2)10.6-(6.6+
÷12.5%)
(3)(
+
)÷
+
(4)
×
+
×
.
(1)(
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 5 |
| 2 |
| 3 |
(2)10.6-(6.6+
| 1 |
| 4 |
(3)(
| 4 |
| 5 |
| 1 |
| 4 |
| 7 |
| 3 |
| 7 |
| 10 |
(4)
| 15 |
| 16 |
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 16 |
(1)(
+
)÷
-
,
=
×
-
,
=
-
,
=1
;
(2)10.6-(6.6+
÷12.5%),
=(10.6-6.6)-
×8,
=4-2,
=2;
(3)(
+
)÷
+
,
=
×
+
,
=
+
,
=1
;
(4)
×
+
×
,
=(
+
)×
,
=
.
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 5 |
| 2 |
| 3 |
=
| 5 |
| 6 |
| 5 |
| 2 |
| 2 |
| 3 |
=
| 25 |
| 12 |
| 8 |
| 12 |
=1
| 5 |
| 12 |
(2)10.6-(6.6+
| 1 |
| 4 |
=(10.6-6.6)-
| 1 |
| 4 |
=4-2,
=2;
(3)(
| 4 |
| 5 |
| 1 |
| 4 |
| 7 |
| 3 |
| 7 |
| 10 |
=
| 21 |
| 20 |
| 3 |
| 7 |
| 7 |
| 10 |
=
| 9 |
| 20 |
| 7 |
| 10 |
=1
| 3 |
| 20 |
(4)
| 15 |
| 16 |
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 16 |
=(
| 15 |
| 16 |
| 1 |
| 16 |
| 5 |
| 6 |
=
| 5 |
| 6 |
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