Adding two digit numbers mentally
https://www.youtube.com/watch?v=O9pDF5eGfw0
Adding two digit numbers mentally is easy once you practice few examples.
16 =10+6
1 is in the tens place so value of 1 =10
6 is in the units place so value of 6 =6
Begin adding from the left column.
Adding two digit numbers mentally is easy once you practice few examples.
16 =10+6
1 is in the tens place so value of 1 =10
6 is in the units place so value of 6 =6
Begin adding from the left column.
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