题目内容
| 1.25÷2.5= | 36×(
| 9
| ||||||
5×
| 8-8÷9= |
|
(1)1.25÷2.5=0.5;
(2)36×(
+
)
=36×
+36×
,
=27+30,
=57;
(3)9
÷9
=
×
,
=1
;
(4)5×
÷
×5
=
÷
×5×5,
=1×5×5,
=25;
(5)8-8÷9
=8-
,
=7
;
(6)
÷7=
.
(2)36×(
| 3 |
| 4 |
| 5 |
| 6 |
=36×
| 3 |
| 4 |
| 5 |
| 6 |
=27+30,
=57;
(3)9
| 9 |
| 10 |
=
| 99 |
| 10 |
| 1 |
| 9 |
=1
| 1 |
| 10 |
(4)5×
| 1 |
| 5 |
| 1 |
| 5 |
=
| 1 |
| 5 |
| 1 |
| 5 |
=1×5×5,
=25;
(5)8-8÷9
=8-
| 8 |
| 9 |
=7
| 1 |
| 9 |
(6)
| 4 |
| 7 |
| 4 |
| 49 |
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