properties of addition grade -1

1. GRADE - Prepared By:
Teacher Lanny G.

3. LESSON -

4. • Lets put them together
3 6 9
• This is how we write the addition sentence .

5. • Lets put them together
3
• This is how we write the addition sentence .
4 7

6. • Putting Things in Order
Clarize arranged the
books in order.
Let us count the books

7. Math Books Science Books
How many are the Math books? 4
How many are the Science books? 2
How many books did she arranged?
6
4 + 2 = 6 (addition sentence)

11. • This is the ORDER
property of Addition
• The position or order of
addends does not
change the sum.

12. 4 + 2 = 6
2 + 4 = 6
What did you notice about
the sum?
4+2= 6 2+4=6
If you change the position of the addends, it
does not change the sum
Commutative Property

17. • This is the grouping
property of Addition

18. How do we add: 4,2 and 1?
Associative Property
Look at the examples
(4 + 2) + 1 = 7 (addition sentence)
6 + 1 =7
4 + (2+1) = 7
4 + 3 = 7
OR

19. Associative Property

20. Associative Property

22. • This is the Zero property of
Addition
• This is means that any number
added to zero gives the same
number

23. 3+0 = 3
0+8 = 8
10+0 = 10
300+0 = 300
addition sentences
0+1000 = 1000

24. 3 4
1
OR
1 4
3
Commutative Property

25. 3 5
2
OR
2 5
3
OR
Commutative Property

26. ( 3 + 2) + 3 = 8
3 (2+3) 8
OR
Associative Property

27. ( 2 + 4 ) + 3 = 9
2 (4+3) 9
OR
Associative Property

28. 9 + 0 = 9
0 9 9
Identity or zero Property

31. 1. 5 ; 4 + 1 = 5
2. 5; 3 + 2 = 5
3. 9; 4 + (2+3) = 9
4. 8; 0+8 = 8
5. 10; 3+ (2+5) = 10

32. • Or Order Property of addition
• The position or order of the addends
does not change the sum
Commutative Property
Associative Property
• Or Grouping Property of addition
• Changing the grouping of the addends
does not affect the sum
Identity or zero Property
• Any number added to zero gives the
same number.

35. See you again next meeting
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