plus sign
plus sign — 名詞
1. the written symbol +, which in mathematics tells you that two numbers should be
加號
數學中用來表示相加或正數的符號
the written symbol +, which in mathematics tells you that two numbers should be added together or shows that a number or amount is above zero.
Owen wrote a plus sign between the two numbers on his math homework.
Owen 在數學作業的兩個數字之間寫了一個加號。
basic addition: plus sign + between + numbers
The teacher drew a large plus sign on the whiteboard and explained what it means.
老師在白板上畫了一個大大的加號，並解釋它的用途。
definitional: teacher explains symbol meaning
A plus sign before a temperature tells you the weather is above freezing.
溫度數字前面的加號表示天氣在冰點以上。
On the calculator keypad, Henrik pressed the plus sign to add the sales tax.
Henrik 在計算機鍵盤上按下加號，把營業稅加進去。
Yara saw a plus sign next to each correct answer on her test paper.
Yara 看到考卷上每個正確答案旁邊都有一個加號。
- addition symbol
more descriptive and formal; used in explaining maths concepts to children
- minus sign
the − symbol, which shows subtraction or a value below zero
用法筆記
In everyday writing, the plus sign before a positive number is often omitted — for example, we write 5°C, not +5°C — but it is always included when emphasising that a value is above zero (e.g. +5°C on a thermometer display).