Posted by **Anonymous** on Wednesday, October 10, 2012 at 6:15pm.

Break apart the addends. Solve for the total sum.

18

+ 21

--------

- Math (kindergarten)??? -
**Ms. Sue**, Wednesday, October 10, 2012 at 6:22pm
10 + 8 + 20 + 1 =

or

20 - 2 + 20 + 1

- Math (kindergarten) -
**Ann**, Tuesday, October 23, 2012 at 4:09pm
39

- Math (kindergarten) -
**anon**, Tuesday, October 30, 2012 at 9:08pm
start on the right. 8+1=9 move to the left side. 1+2= 3. the solution to this problem is 39

- Math (kindergarten) -
**Caleb **, Sunday, November 4, 2012 at 6:49pm
go to the right.8+1=9

go to the left.1+2=3

it is 39.

- Math (kindergarten) -
**Lauren**, Monday, November 5, 2012 at 7:43pm
10+8+20+1= 39

- Math (kindergarten) -
**Eduarda cardoso**, Monday, April 1, 2013 at 3:50pm
39

- Math (kindergarten) -
**Kaitlyn**, Friday, May 10, 2013 at 8:55am
18 + 21 = 39

Answer:

39

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