题目内容
列式计算
(1)从1里减去
与
的和,差是多少?
(2)从
里减去
,然后加上
,和是多少?
(1)从1里减去
| 1 |
| 5 |
| 1 |
| 6 |
(2)从
| 7 |
| 10 |
| 2 |
| 15 |
| 1 |
| 2 |
解;(1)1-(
+
),
=1-
,
=
;
答:差是
.
(2)
-
+
,
=
-
+
,
=
.
答;和是
.
| 1 |
| 5 |
| 1 |
| 6 |
=1-
| 11 |
| 30 |
=
| 19 |
| 30 |
答:差是
| 19 |
| 30 |
(2)
| 7 |
| 10 |
| 2 |
| 15 |
| 1 |
| 2 |
=
| 21 |
| 30 |
| 4 |
| 30 |
| 15 |
| 30 |
=
| 16 |
| 15 |
答;和是
| 16 |
| 15 |
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