Traditionally this is very time consuming to calculate the **Addition of Similar Digit Number, **and it create confusion at that moment in speed. So don’t worry here we have given you **Quick shortcut tricks** to do quickly calculation. Sometimes we face this type of problems in our exam or daily routine.

**Example:** 7 + 77 + 777 + 7777 + 77777 = ?

**Shortcut Tricks**

**Step 1:** Take 8 common and Replace all 7 with 1.

i.e, 7(1 + 11 + 111 + 1111 + 11111)

**Step 2:** Count number of digits in each number,

i.e, 1=1(digit), 11=2(digit), 111=3(digit), 1111=4(digit), 11111=5(digit),

and write down all digits together that is 12345.

**Step 3:** Multiply 7 x 12345 = 86415.

The final result is 86415.