问题
解答题
670-(12+28)×14的运算过程是:先算加法,再算乘法,最后算减法.______.(判断对错)
答案
670-(12+28)×14,
=670-40×14,
=670-560,
=110;
所以题干的说法是正确的;
故答案为:√.
670-(12+28)×14的运算过程是:先算加法,再算乘法,最后算减法.______.(判断对错)
670-(12+28)×14,
=670-40×14,
=670-560,
=110;
所以题干的说法是正确的;
故答案为:√.
选择方框里的词组并用其适当形式完成句子,其中有一项是多余的。 | |
2. I _____ with my friends at the mall last Sunday. 3. It is better to _____ your homework on time. 4. Her father is often _____ as Father Christmas on Christmas Eve. 5. It's not polite to _____ while you are eating. |