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  • Did you know that you use addition all the time?

    你知道自己一直在使用加法嗎?

  • When you put money into your bank account, you're adding to your balance.

    當您將錢存入銀行帳戶時,就會加進你的餘額

  • At the grocery store, you add items to your cart.

    在雜貨店購物,你會將要買的物品加進購物車

  • When you add, you're combining two or more numbers to get a larger number.

    使用加法,你會組合兩個或兩個以上的數字,得到更大的數字。

  • This larger number called the sum.

    這個更大的數字稱為「總和」

  • For example, if you already have three lemons and you go to the store

    例如,假設你已經有三顆檸檬,你去店裡

  • and buy two more, you now have five lemons.

    再多買兩個,現在你就有五顆檸檬

  • You can write this as: three plus two equals five.

    你可以把它寫成:3加2等於5

  • The plus sign is used when you add.

    當你相加時,會使用到加號

  • When you're adding, be sure to keep place values in mind.

    把兩數相加時,請務必記得對齊原有的位數

  • Place values determine the way you read and write a number.

    對齊位數會決定你讀取和寫入數字的方式

  • let's look at the number is six hundred and thirty two.

    讓我們來看一下632這個數字

  • Two is in the ones place.

    2在個位數

  • The three is in the tens place.

    3在十位數

  • And the sixth is in the hundreds place.

    6則在百位數

  • An easy way to add numbers is to stack them according to their place values.

    一個簡單的算法是,根據它們的位數分別相加

  • if you want to add twelve and three, first stack twelve, the larger of the two

    如果要將12和3相加,首先列出12,它是兩數中較大的

  • numbers, on top of three.

    一個數,擺在3上頭

  • Notice that the ones position for each of the two numbers are lined up vertically.

    注意喔,兩個數字中的位數都是垂直排列

  • Place a plus sign on the left of the stack and draw a line at the bottom.

    並在兩個排列位數的左側寫上加號,並在底下畫一條線

  • Now you're ready to add.

    現在,你就可以將它們相加了

  • Three plus two is five. So put a five below the line.

    3加2等於5,因此在橫線下寫個5

  • The one in the tens place has nothing to combine with, so bring the one below the line.

    10位數沒有什麼可以加的,所以把1寫在橫線底下。

  • The answer, or sum, is fifteen.

    答案,或稱總數,是15

  • And those are the basics of addition

    以上是基礎加法

Did you know that you use addition all the time?

你知道自己一直在使用加法嗎?

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A2 初級 中文 位數 加法 數字 檸檬 排列 等於

數學基礎知識。加法 (Math Basics: Addition)

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    阿蘭 發佈於 2021 年 01 月 14 日
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