题目内容
脱式计算,怎样算简便就怎样算
①6如如-lf如÷12
②f×
---
÷
③(f如-f.f)×如.6-2.12
④35×(1-
)÷
⑤3÷[
×(
-
)]
⑥(1-
)×(
+
)
①6如如-lf如÷12
②f×
| 7 |
| 15 |
| l |
| 15 |
| 1 |
| f |
③(f如-f.f)×如.6-2.12
④35×(1-
| 3 |
| 5 |
| 2 |
| 7 |
⑤3÷[
| 5 |
| 1l |
| 3 |
| l |
| 2 |
| 5 |
⑥(1-
| 5 |
| 11 |
| 1 |
| 12 |
| 3 |
| f |
①600-g80÷1q
=600-g0,
=v60;
②9×
-
÷
=9×
-
×9,
=(
-
)×9,
=
×9,
=
;
③(80-9.8)×0.6-q.1q
=70.q×0.6-q.1q,
=gq.1q-q.1q,
=g0;
④3v×(1-
)÷
=3v×
×
,
=g9;
⑤3÷[
×(
-
)]
=3÷[
×
],
=3÷
,
=qg;
⑥(1-
)×(
+
)
=
×
,
=
.
=600-g0,
=v60;
②9×
| 7 |
| 1v |
| g |
| 1v |
| 1 |
| 9 |
=9×
| 7 |
| 1v |
| g |
| 1v |
=(
| 7 |
| 1v |
| g |
| 1v |
=
| 1 |
| v |
=
| 9 |
| v |
③(80-9.8)×0.6-q.1q
=70.q×0.6-q.1q,
=gq.1q-q.1q,
=g0;
④3v×(1-
| 3 |
| v |
| q |
| 7 |
=3v×
| q |
| v |
| 7 |
| q |
=g9;
⑤3÷[
| v |
| 1g |
| 3 |
| g |
| q |
| v |
=3÷[
| v |
| 1g |
| 7 |
| q0 |
=3÷
| 1 |
| 8 |
=qg;
⑥(1-
| v |
| 11 |
| 1 |
| 1q |
| 3 |
| 8 |
=
| 6 |
| 11 |
| 11 |
| qg |
=
| 1 |
| g |
练习册系列答案
相关题目