题目内容
用简便方法计算
(1)6.35-
+4.65-
=
(2)
÷7+
×
=
(3)
×0.25×
×4=
(1)6.35-
| 5 |
| 7 |
| 2 |
| 7 |
(2)
| 8 |
| 13 |
| 1 |
| 7 |
| 5 |
| 13 |
(3)
| 3 |
| 4 |
| 4 |
| 3 |
(1)6.35-
+4.65-
=6.35+4.65-(
+
),
=11-1,
=10;
(2)
÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
| 5 |
| 7 |
| 2 |
| 7 |
=6.35+4.65-(
| 5 |
| 7 |
| 2 |
| 7 |
=11-1,
=10;
(2)
| 8 |
| 13 |
| 1 |
| 7 |
| 5 |
| 13 |
=
| 8 |
| 13 |
| 1 |
| 7 |
| 1 |
| 7 |
| 5 |
| 13 |
=(
| 8 |
| 13 |
| 5 |
| 13 |
| 1 |
| 7 |
=1×
| 1 |
| 7 |
=
| 1 |
| 7 |
(3)
| 3 |
| 4 |
| 4 |
| 3 |
=(
| 3 |
| 4 |
| 4 |
| 3 |
=1×1,
=1.
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