Difference between 12 and 7

Vertically align numbers with Larger Number on top:
1 2
7

Subtract using place value:

Tens Ones
0 12
12 1 2
7 7
Difference 5
Column traversal from right to left
Ones column:
  • Since 2 is less than 7, we have to borrow 1 from the Tens column
  • As a result, 2 becomes 12, and 12 − 7 = 5
  • The 1 in the Tens column becomes 0

Tens column:

  • 0 − 0 = 0

Note: Leading zero is dropped

0 12
1 2
7
5
Therefore, the Difference between 12 and 7 is 5

Check computation by comparing Larger Number and the Sum of Smaller Number and Difference:

1
7
5
1 2

Sum of Smaller Number and Difference = 12
Sum of Smaller Number and Difference = Larger Number (12 = 12) ✓

The solution above and other related solutions were provided by the Difference Between Two Numbers Application.

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