subtraction 核心詞議：
n. 減法；減去
subtraction 基本解釋
速記方法
速記技巧
詞根詞綴法
sub-下+-tract-拉+-ion→拉下去→減去
知識擴展
中文詞源
中文詞源：
subtraction
精選例句
1、 She's ready to learn simple addition and subtraction.
她準備學習簡單的加法和減法。
常見考點例句：
- They were better at arithmetic , including tasks like simple subtraction and complex multiplication .
- 她們更擅長算術，包括簡單減法和復雜乘法。
- Help your child learn division , multiplication , subtraction and addition by teaching her about the different denominations of money .
- 通過錢不同的面值教導他，幫助孩子學到乘、除、減和加法的不同運算方法。
- But some operations ( including subtraction and division ) care about order , so the symmetrical foldright method exists to handle those cases .
- 但某些操作（包括減法和除法）就很在意順序，所以要存在一個對稱的foldright方法來處理這些情況。
- According to discovery , dolphins are able to do complex , nonlinear math that involves addition , subtraction , multiplication and ratio comparisons .
- 據探索頻道報道，海豚能夠做復雜的非線性數學運算，包括加法，減法，乘法和比例比較等。
- To get through stressful homework sessions , she used blocks for addition and subtraction " so he could touch every one . "
- 為了應付緊張的家庭作業，她用木塊來幫助兒子做加法和減法，“這樣他就可以觸摸到每一個木塊?！?/dd>