Question

Use mental math to find us some draw or describe the strategy you used 52+19 = 71

Answer 1

1. Set up long addition.

5 2
+1 9
______

2. Calculate 2+ 9, which is 11.
Since 11 is two-digit, we carry the first digit 1 to
the next column.
1
5 2
+1 9
_____
1

3. Calculate 5+1, which is 6. Now add the
carry digit of 1, which is 7.
1
5 2
+ 1 9
______
7 1

4. Therefore, 52 + 19 = 71.

71