题目内容
| 脱式计算. ①302×34-47 | ②324+456÷3 | ③8×(531-276) |
①302×34-47,
=10268-47,
=10221;
②324+456÷3,
=324+152,
=476;
③8×(531-276),
=8×255,
=2040.
=10268-47,
=10221;
②324+456÷3,
=324+152,
=476;
③8×(531-276),
=8×255,
=2040.
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| 脱式计算. ①302×34-47 | ②324+456÷3 | ③8×(531-276) |