Fill in the Blank.
9+10+=+10+11.
11
9
If, a,b,&c are three whole numbers, then a+b+c=a+b+c, This property is called the associative property of addition.
∴9+10+11=9+10+11.
Fill in the blank:
6+=+6=6.
Fill in the blanks.
+69=89
213+=3313
Fill in the blanks:
0.075=1000
45+37=37+