题目内容
| 脱式计算. 18×
|
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|
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(
|
|
(十)十六×
×
,
=十六×(
×
),
=十六×
,
=十0;
(2)
÷
×
,
=
×
×
,
=
;
(十)
×(十÷
),
=
×(十×
),
=
×
,
=2;
(五)
×
×十十×十十,
=
×十十×
×十十,
=十0×十,
=十0;
(大)(
+
)×
,
=
×
+
×
,
=
+十,
=十
;
(6)
×2十+2六×
,
=
×(2十+2六),
=
×五9,
=十十.
| 大 |
| 6 |
| 2 |
| 十 |
=十六×(
| 大 |
| 6 |
| 2 |
| 十 |
=十六×
| 十0 |
| 十六 |
=十0;
(2)
| 十 |
| 五 |
| 大 |
| 2六 |
| 十 |
| 2十 |
=
| 十 |
| 五 |
| 2六 |
| 大 |
| 十 |
| 2十 |
=
| 十 |
| 大 |
(十)
| 五 |
| 0 |
| 2 |
| 0 |
=
| 五 |
| 0 |
| 0 |
| 2 |
=
| 五 |
| 0 |
| 0 |
| 2 |
=2;
(五)
| 十0 |
| 十十 |
| 十 |
| 十十 |
=
| 十0 |
| 十十 |
| 十 |
| 十十 |
=十0×十,
=十0;
(大)(
| 五 |
| 大 |
| 十 |
| 十0 |
| 十0 |
| 十 |
=
| 五 |
| 大 |
| 十0 |
| 十 |
| 十 |
| 十0 |
| 十0 |
| 十 |
=
| 六 |
| 十 |
=十
| 2 |
| 十 |
(6)
| 十十 |
| 五9 |
| 十十 |
| 五9 |
=
| 十十 |
| 五9 |
=
| 十十 |
| 五9 |
=十十.
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