题目内容
脱式计算
4÷
|
|
|
|
(1)4÷
÷
,
=4×8×
,
=48;
(2)
÷
×
,
=
×
×
,
=
;
(3)
×
÷
,
=
×
×
,
=
;
(4)
÷18×
,
=
×
×
,
=
.
| 1 |
| 8 |
| 2 |
| 3 |
=4×8×
| 3 |
| 2 |
=48;
(2)
| 2 |
| 3 |
| 4 |
| 9 |
| 3 |
| 16 |
=
| 2 |
| 3 |
| 9 |
| 4 |
| 3 |
| 16 |
=
| 9 |
| 32 |
(3)
| 3 |
| 4 |
| 8 |
| 15 |
| 7 |
| 10 |
=
| 3 |
| 4 |
| 8 |
| 15 |
| 10 |
| 7 |
=
| 4 |
| 7 |
(4)
| 6 |
| 7 |
| 14 |
| 15 |
=
| 6 |
| 7 |
| 1 |
| 18 |
| 14 |
| 15 |
=
| 1 |
| 45 |
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