题目内容
脱式计算:(能简算的要简算)
×
+
÷7;
÷[
×(
-
)];
8.6×2
-0.6÷
.
| 6 |
| 15 |
| 1 |
| 7 |
| 8 |
| 15 |
| 9 |
| 10 |
| 1 |
| 2 |
| 6 |
| 5 |
| 3 |
| 10 |
8.6×2
| 3 |
| 4 |
| 4 |
| 11 |
(1)
×
+
÷7,
=
×
+
×
,
=(
+
)×
,
=
×
,
=
;
(2)
÷[
×(
-
)],
=
÷[
×
],
=
÷
,
=2;
(3)8.6×2
-0.6÷
,
=8.6×
-0.6×
,
=(8.6-0.6)×
,
=8×
,
=22.
| 6 |
| 15 |
| 1 |
| 7 |
| 8 |
| 15 |
=
| 6 |
| 15 |
| 1 |
| 7 |
| 8 |
| 15 |
| 1 |
| 7 |
=(
| 6 |
| 15 |
| 8 |
| 15 |
| 1 |
| 7 |
=
| 14 |
| 15 |
| 1 |
| 7 |
=
| 2 |
| 15 |
(2)
| 9 |
| 10 |
| 1 |
| 2 |
| 6 |
| 5 |
| 3 |
| 10 |
=
| 9 |
| 10 |
| 1 |
| 2 |
| 9 |
| 10 |
=
| 9 |
| 10 |
| 9 |
| 20 |
=2;
(3)8.6×2
| 3 |
| 4 |
| 4 |
| 11 |
=8.6×
| 11 |
| 4 |
| 11 |
| 4 |
=(8.6-0.6)×
| 11 |
| 4 |
=8×
| 11 |
| 4 |
=22.
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