Observe and complete 1+3=? 5+11=? 21+47=? __+__=? From this observation we conclude that "the sum of any two odd numbers is always an ______"

Observe and complete
1+3=?
5+11=?
21+47=?
+=?
From this observation we conclude that "the sum of any two odd numbers is always an ______"

Matching exercise

Match the items on the right to the items on the left.

Step 1

Step 2

Step 3

Step 4

Step 5