Skip to main content
P2 maths・2N6

Basic division

Two meanings of division: sharing equally (21 shared into 3 groups) and grouping (how many 7s in 21); the ÷ sign, dividend, divisor, quotient and remainder; that the remainder is always smaller than the divisor; using the times tables to divide, and multiplication to check; and division word problems, including when one more group is needed.

Key words

ChineseEnglish
除法division
被除數dividend
除數divisor
商quotient
餘數remainder
平均分share equally

The 12 short lessons and the chapter test

Lessons are in Chinese for now.

  1. 平均分
  2. 每幾個一份
  3. 除法算式
  4. 乘法和除法的關係
  5. 一組乘除算式
  6. 找出未知數
  7. 有餘數的除法
  8. 餘數要比除數小
  9. 驗算除法
  10. 0 和 1 的除法
  11. 應用題
  12. 重溫
  13. 章節測驗 (chapter test)

Sample questions (in Chinese)

Question 118 張貼紙平均分給 2 位同學,每人分得多少張?

18 ÷ 2 =

Answer and explanation

答案:18 ÷ 2 = 9

為甚麼?把 18 平均分成 2 等份,用除法。想一想:2 乘以多少等於 18?因為 2 × 9 = 18,所以 18 ÷ 2 = 9。每人分得 9 張。

Question 2計算。

45 ÷ 5 =

Answer and explanation

答案:45 ÷ 5 = 9

為甚麼?想一想:5 乘以多少等於 45?因為 5 × 9 = 45,所以 45 ÷ 5 = 9。

Question 3計算,寫出商和餘數。

20 ÷ 3 = …

Answer and explanation

答案:20 ÷ 3 = 6 … 2

為甚麼?想一想:3 乘以多少最接近 20,又不超過 20?3 × 6 = 18,3 × 7 = 21 就太大了。20 − 18 = 2,所以 20 ÷ 3 = 6 … 2。餘數 2 比除數 3 小。

Question 4在 58 ÷ 6 = 9 … 4 中,被除數是多少?

被除數是 。

Answer and explanation

答案:被除數是 58。

為甚麼?在 58 ÷ 6 = 9 … 4 中,58 是被除數,6 是除數,9 是商,4 是餘數。

Based on learning unit 2N6 of the Education Bureau’s Primary Mathematics Curriculum (2017).

More P2 maths topics