Jahaan J.

asked • 05/01/15

Some of my friends tell me its 21 and some say it is 19... Which one is it?

What is 9 + 10?

Vicki V.

It is 19.  just line up your ones (0 and 9) and add them to get 9, then line up your tens column (1 and nothing) and add them to get 1.
 
    9
+10
  19
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05/01/15

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