题目内容
脱式计算.(能简算的要简算)
| 12×(
|
| ||||||||||||||||||
1-(
|
|
|
(1)
×
-
×
=(
-
)×
=
×
=
;
(2)12×(
-
)
=12×
-12×
=6-
=
;
(3)
÷
×
=
×
=
;
(4)1-(
-
)÷
=1-
÷
=1-
=
;
(5)
×35
=
×(36-1)
=
×36-1×
=35-
=34
;
(6)
÷(
+
)×
=
÷
×
=
×
=
.
| 3 |
| 5 |
| 7 |
| 12 |
| 1 |
| 5 |
| 7 |
| 12 |
=(
| 3 |
| 5 |
| 1 |
| 5 |
| 7 |
| 12 |
=
| 2 |
| 5 |
| 7 |
| 12 |
=
| 7 |
| 30 |
(2)12×(
| 1 |
| 2 |
| 3 |
| 8 |
=12×
| 1 |
| 2 |
| 3 |
| 8 |
=6-
| 9 |
| 2 |
=
| 3 |
| 2 |
(3)
| 10 |
| 7 |
| 5 |
| 8 |
| 9 |
| 4 |
=
| 16 |
| 7 |
| 9 |
| 4 |
=
| 36 |
| 7 |
(4)1-(
| 7 |
| 8 |
| 2 |
| 5 |
| 10 |
| 9 |
=1-
| 19 |
| 40 |
| 10 |
| 9 |
=1-
| 171 |
| 400 |
=
| 229 |
| 400 |
(5)
| 35 |
| 36 |
=
| 35 |
| 36 |
=
| 35 |
| 36 |
| 35 |
| 36 |
=35-
| 35 |
| 36 |
=34
| 1 |
| 36 |
(6)
| 4 |
| 9 |
| 1 |
| 3 |
| 1 |
| 2 |
| 3 |
| 5 |
=
| 4 |
| 9 |
| 5 |
| 6 |
| 3 |
| 5 |
=
| 8 |
| 15 |
| 3 |
| 5 |
=
| 8 |
| 25 |
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