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因数和倍数

因数和倍数. 因数 - 分装月饼. 12 个月饼要装到盒子里 , 可以装成几盒呢?. 如果 1 盒装一个月饼的话 ,. 12 ( 盒 ). 12 ÷ 1 =. 12 = 1 × 12. 12 个月饼要装到盒子里 , 可以装成几盒呢?. 如果 1 盒装 2 个月饼的话 ,. 12 ÷ 2 =. 6 ( 盒 ). 12 = 2 × 6. 12 个月饼要装到盒子里 , 可以装成几盒呢?. 如果 1 盒装 3 个月饼的话 ,. 12 ÷ 3 =. 4 ( 盒 ). 12 = 3 × 4.

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因数和倍数

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  1. 因数和倍数 因数-分装月饼

  2. 12个月饼要装到盒子里,可以装成几盒呢? • 如果1盒装一个月饼的话, 12(盒) 12 ÷ 1 = 12 = 1 × 12

  3. 12个月饼要装到盒子里,可以装成几盒呢? • 如果1盒装2个月饼的话, 12 ÷ 2 = 6 (盒) 12 = 2 × 6

  4. 12个月饼要装到盒子里,可以装成几盒呢? • 如果1盒装3个月饼的话, 12 ÷ 3 = 4 (盒) 12 = 3 × 4

  5. 12个月饼要装到盒子里,可以装成几盒呢? • 如果1盒装4个月饼的话, 3 (盒) 12 ÷ 4 = 12 = 4 × 3

  6. 12个月饼要装到盒子里,可以装成几盒呢? • 如果1盒裝5个月饼的话, 2 (盒)……2 12 ÷ 5 = 每盒装5个不能刚刚好装完

  7. 12个月饼要装到盒子里,可以装成几盒呢? • 12 ÷ 1 = 12 • 12 ÷ 2 = 6 • 12 ÷ 3 = 4 • 12 ÷ 4 = 3 • 12 ÷ 5 = 2……2 • 12 ÷ 6 = 2 • 12 ÷ 7 = 1……5 • 12 ÷ 8 = 1……4 • 12 ÷ 9 = 1……3 • 12 ÷ 10= 1……2 • 12 ÷ 11= 1……1 • 12 ÷ 12= 1

  8. 12个月饼要装到盒子里,可以装成几盒呢? • 12 ÷ 1 = 12 • 12 ÷ 2 = 6 • 12 ÷ 3 = 4 • 12 ÷ 4 = 3 • 12 ÷ 6 = 2 • 12 ÷ 12= 1 12 ÷ 5 = 2……2 12 ÷ 7 = 1 ……5 12 ÷ 8 = 1 ……4 12 ÷ 9 = 1 ……3 12 ÷ 10= 1 ……2 12 ÷ 11= 1 ……1

  9. 因数: • 12可以被1、2、3、4、6、12分完, • 所以1、2、3、4、6、12是12的因数 • 15的因数有哪些? • 1、3、5、15 • 18的因数有哪些? • 1、2、3、6、9、18

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