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除法 ( 一 )
保良局莊啟程第二小學
   二下數學科
問題一
  有 女 6 粒,每 3 粒串成一條手鏈,可串成多少條
    手鏈 ?

女 女 女 女 女 女       6       第一條手鏈
               __
                  3
              _________


                  3
               __
                  3
              _________
                          第二條手鏈

                  0
問題一
      有 女 6 粒,每 3 粒串成一條手鏈,可串成多少條
        手鏈 ?
    6                   6-3-3=0
 __
    3
_________
            第一條手鏈

    3                     2次
 __
    3
_________
            第二條手鏈

    0               6÷ 3 =2( 條 )
                     6÷3=0( 條 ))
                     6÷2=3( 條
                讀作 : 6 除以 3 等於 2 條
分蘋果
蘋果 12 個,平均分給 4 位小朋友,每位小朋友可有多少個蘋
果?
     12
 __    4
 _________
               12-4-4-4=0
       8
 __    4
 _________
                   3次
       4
 __
       4
 _________   12÷3=4( 條 )
              12÷4= 3( 個
             12÷4=0( 條 )
       0
             讀作 : 12 除以 4 等於 3 個
分橙
橙 15 個,每 3 個一碟,可分成多少碟 ?


減法橫式 :   15-3=12
          15-3-3-3-3-3=0
除法橫式 : 15÷3=5(     碟)


        讀作 : 15 除以 3 等於 5 碟
用除式表示分物結果
16-4-4-4-4=0         4
                 16÷___=4
15-5-5-5=0           3
                15÷___=5
18-6-6-6=0     ___÷6=___ 3
                   18
27-9-9-9=0     ___÷___=____3
                   2    9
                   7
問題一
  有 女 7 粒,每 3 粒串成一條手鏈,可串成多少條
    手鏈 ?

女 女 女 女 女 女 女       7       第一條手鏈
                 __
                    3
                _________


                    4
                 __
                    3
                _________
                            第二條手鏈

                    1
問題一
      有 女 7 粒,每 3 粒串成一條手鏈,可串成多少條
        手鏈 ?
    7                    7-3-3=1
 __
    3
_________
            第一條手鏈

    4                      2次
 __
    3
_________
            第二條手鏈

    1             ___÷___=___( 條 )... ___(粒 )
                           2( 條 )
                      7÷3=1(條 )...1( 粒 )
                   7÷ 3 =
               讀作 : 7 除以 3 等於 2 條餘下 1 粒
分蘋果
蘋果 9 個,平均分給 4 位小朋友,每位小朋友可有多少個蘋果
?
       9
 __    4            9-4-4=1
 _________
       5
 __    4         9÷4=1( 個 )
                    2次
 _________

       1
                9   4 2            1
              ___÷___=___( 個 )... ___( 個 )

         讀作 : 9 除以 4 等於 2 個餘下 1 個
用除式表示分物結果
11-4-4=3              4        3
                   11÷___=2...____
                       3        1
16-3-3-3-3-3=1    14        2
                   16÷___=5...____
14-6-6=2          28 9
                   ___÷6=2...____1
28-9-9-9=1        18 7         4
                   ___÷___=3...____
18-7-7=4          22 6         4
                   ___÷___=2...____
22-6-6-6=4        ___÷___=3...____1
                   5    2    2
5-2-2=1            25 8      3     1
                   ___÷___=____...____
25-8-8-8=1         15 5     3
 ___÷___=____...____

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除法(一)

  • 1. 除法 ( 一 ) 保良局莊啟程第二小學 二下數學科
  • 2. 問題一 有 女 6 粒,每 3 粒串成一條手鏈,可串成多少條 手鏈 ? 女 女 女 女 女 女 6 第一條手鏈 __ 3 _________ 3 __ 3 _________ 第二條手鏈 0
  • 3. 問題一 有 女 6 粒,每 3 粒串成一條手鏈,可串成多少條 手鏈 ? 6 6-3-3=0 __ 3 _________ 第一條手鏈 3 2次 __ 3 _________ 第二條手鏈 0 6÷ 3 =2( 條 ) 6÷3=0( 條 )) 6÷2=3( 條 讀作 : 6 除以 3 等於 2 條
  • 4. 分蘋果 蘋果 12 個,平均分給 4 位小朋友,每位小朋友可有多少個蘋 果? 12 __ 4 _________ 12-4-4-4=0 8 __ 4 _________ 3次 4 __ 4 _________ 12÷3=4( 條 ) 12÷4= 3( 個 12÷4=0( 條 ) 0 讀作 : 12 除以 4 等於 3 個
  • 5. 分橙 橙 15 個,每 3 個一碟,可分成多少碟 ? 減法橫式 : 15-3=12 15-3-3-3-3-3=0 除法橫式 : 15÷3=5( 碟) 讀作 : 15 除以 3 等於 5 碟
  • 6. 用除式表示分物結果 16-4-4-4-4=0 4 16÷___=4 15-5-5-5=0 3 15÷___=5 18-6-6-6=0 ___÷6=___ 3 18 27-9-9-9=0 ___÷___=____3 2 9 7
  • 7. 問題一 有 女 7 粒,每 3 粒串成一條手鏈,可串成多少條 手鏈 ? 女 女 女 女 女 女 女 7 第一條手鏈 __ 3 _________ 4 __ 3 _________ 第二條手鏈 1
  • 8. 問題一 有 女 7 粒,每 3 粒串成一條手鏈,可串成多少條 手鏈 ? 7 7-3-3=1 __ 3 _________ 第一條手鏈 4 2次 __ 3 _________ 第二條手鏈 1 ___÷___=___( 條 )... ___(粒 ) 2( 條 ) 7÷3=1(條 )...1( 粒 ) 7÷ 3 = 讀作 : 7 除以 3 等於 2 條餘下 1 粒
  • 9. 分蘋果 蘋果 9 個,平均分給 4 位小朋友,每位小朋友可有多少個蘋果 ? 9 __ 4 9-4-4=1 _________ 5 __ 4 9÷4=1( 個 ) 2次 _________ 1 9 4 2 1 ___÷___=___( 個 )... ___( 個 ) 讀作 : 9 除以 4 等於 2 個餘下 1 個
  • 10. 用除式表示分物結果 11-4-4=3 4 3 11÷___=2...____ 3 1 16-3-3-3-3-3=1 14 2 16÷___=5...____ 14-6-6=2 28 9 ___÷6=2...____1 28-9-9-9=1 18 7 4 ___÷___=3...____ 18-7-7=4 22 6 4 ___÷___=2...____ 22-6-6-6=4 ___÷___=3...____1 5 2 2 5-2-2=1 25 8 3 1 ___÷___=____...____ 25-8-8-8=1 15 5 3 ___÷___=____...____