Asked by Anonymous

Break apart the addends. Solve for the total sum.
18
+ 21
--------
Answered by Ms. Sue
10 + 8 + 20 + 1 =

or

20 - 2 + 20 + 1

Answered by Ann
39
Answered by anon
start on the right. 8+1=9 move to the left side. 1+2= 3. the solution to this problem is 39
Answered by Caleb
go to the right.8+1=9
go to the left.1+2=3
it is 39.
Answered by Lauren
10+8+20+1= 39
Answered by Eduarda cardoso
39
Answered by Kaitlyn
18 + 21 = 39

Answer:

39