"Laws in Addition Calculation" Discovery Paradise PPT courseware

Category	Format	Size
Hebei Education Edition First Grade Mathematics Volume 1	pptx	6 MB

"Laws in Addition Calculation" Discovery Paradise PPT courseware

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Upload Time: 2024-08-29

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Description

"Laws in Addition Calculation" Discovery Paradise PPT courseware

teaching objectives

1. Experience the process of calculation, discovery, summary of rules and simple application.

2. Know that the two calculation formulas obtained by exchanging positions of two numbers are equal in number, and be able to use this rule to solve graph algebra problems.

3. Curiosity and thirst for knowledge about regular things.

Do the math:

6 + 5 =

5 + 6 =

6 + 5 =

7 + 3 =

3 + 7 =

In conclusion

When two numbers are added, the positions of the two numbers are swapped, and the two addition formulas result in the same number.

According to the above rules, fill in the appropriate number in ( ).

9 + 8 = 8 + ( )

8 + 6=6 + ( )

11+ 5 = ( ) + ( )

13+ 4 = ( ) + ( )

In conclusion

In the synthesis of numbers, the sum of two smaller numbers equals a larger number; in the decomposition of numbers, a larger number minus a smaller number equals another smaller number.

practice

1. Find the pattern, which number should it be?

3. Fill in the appropriate number in □.

4. What numbers do the cuboid and the cube represent?

5. Choose the appropriate fruit to fill in ( ).

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File Info

Update Time: 2024-08-29

This template belongs to Mathematics courseware Hebei Education Edition First Grade Mathematics Volume 1 industry PPT template

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Exploration Paradise ppt Rules in addition calculation ppt

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"Laws in Addition Calculation" Discovery Paradise PPT courseware