问题描述：
这几个算术表达式正确吗?
1 eight multiplied by four is thirty-two.
2 multiply eight by four is thirty-two.
3 four subtracted from eight is four.
4 subtract four from eight is four.
1 eight multiplied by four is thirty-two.
2 multiply eight by four is thirty-two.
3 four subtracted from eight is four.
4 subtract four from eight is four.
问题解答：
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