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# 0 的认识 - PowerPoint PPT Presentation

0 的认识. 2. 1. 0. 1. 2. 4. 5. 0. 3. 起点. 0. 0. 3. -. 3. 0. =. ？只. 4. +. 5. 1. =. ？只. 4. +. 4. 0. =. 打鸡蛋. 3. 1. 2. 2. 1. 3. 0. 4. 3 – 0 = 3. 0 + 0 = 0. 4 – 0 = 4. 5 – 4 = 1. 1 – 1 = 0. 0 + 2 = 2. 摘苹果. 这样的算式你能说几题？. □+ 0 = □. □ - 0 = □. 写一写“ 0”. 写一写“ 0”.

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## PowerPoint Slideshow about ' 0 的认识' - ruby-phelps

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0的认识

1

0

2

4

5

0

3

-

3

0

=

4

+

5

1

=

4

+

4

0

=

3

1

2

2

1

3

0

4

0 + 0 = 0

4 – 0 = 4

5 – 4 = 1

1 – 1 = 0

0 + 2 = 2

□+ 0 = □

□ - 0 = □