If you subtract an even number from an odd number, is the answer odd or even?
译句: 如果用一个偶数去减奇数,得到的差是奇数还是偶数?(答案附在文末)
subtract/səb'trækt/ vt. 减去;扣掉
[反义词]:n. add, add togetherji
[惯用语]:subtract from 减去
[例句]:
• 6 subtracted from 9 gives 3.
9减6得3。
• The pupil could add and subtract but hadn't learned to divide.
这名小学生能做加法和减法,但还没学会做除法。
even/'ivən/ adv. 甚至, 更加; adj. 平坦的,均匀的; 稳定的,偶数的
[反义词]:n.odd, unequal, uneven,
[惯用语]:
even if 即使;虽然
even more 更多地,更多的
even so 虽然如此,即使如此
even worse 更糟的是
even now 即使到现在, 尽管这样
make even 使平坦, 使最后一行排足
break even 不赚不赔;打成平手
even number 偶数
even since 自从
[例句]:
• Even if he refuses, you must insist.
无论如何都要让他答应。
• She didn't even call to say she wasn't coming.
她甚至没打电话来说一声她不来了。
• 4, 6, 8, 10 are all even numbers.
4、6、8、10都是偶数。
odd/ɑd/ adj. 奇怪的; 古怪的, 奇数的,余下的
[同义词]:adj. unusual, inexact, strange
[反义词]:adj. even, usual, exact
[例句]:
• Among the numbers from zero to nine, nine is the highest odd number.
从零到九的数字中,九是最大的奇数。
• He is an odd specimen in our school.
他在我们学校是一个古怪的人。
• The British have a very odd sense of humour.
英国人的幽默感很奇特。
答案: odd ( e.g. 21 - 8=13 )