adding first, you need to know… associative property of addition when: (a + b) + c = a + (b + c)...
TRANSCRIPT
Adding and Subtracting Whole Numbers
Adding
First, you need to know…Associative Property of Addition
When: (a + b) + c = a + (b + c)
Commutative Property of AdditionWhen: a + b= b + a
Zero Property of AdditionWhen: a + 0= a
4,285+ 124
Always start with the ones.
Let’s Try Some!
4,285
+ 124
4,409
2,402
+1,789
4,191
1 1 1
More Practice!
1,891
+ 298
2,189
5,765
+ 6,341
12,106
1 1 1 1
Subtraction
4,987- 2,158
Always start with the ones.
Let’s Try Some!
4,987
- 2,158
3,230
- 320
177 2 12
2,829 1,910
More Practice!
5,290
- 1,488
9,222
- 6,180
4 12 810 1 12
3,802 3,042
Now you should be able to add and subtract whole
numbers!