# How to Multiply Four Digit Number by 4 digit Repetitive Numbers

## How to Multiply Four Digit Number by 4 digit Repetitive Numbers

Mental Math Multiplication Tricks : To Multiply Four Digit Number by 4 digit Repetitive Numbers

**Step 1:** Multiply the first numeral by the repeated number and write down the result.

**Step 2:** Add first and second numeral and multiply by the repeated numeral. Then append to previous result. If carry exists, add the carry to the previous result.

**Step 3:** Add the first, second, third numeral and then multiply by the repeated numeral. Then append to previous result. In case the carry exists, then add the carry to the previous result.

**Step 4:** Similarly, add up to n digit and multiply by the repeated number and append to the previous result. If carry exists, add the carry to the previous result.

**Step 5:** Add from second numeral upto n numeral and multiply by the repeated numeral and append to the previous result. If carry exists, add the carry to the previous result.

**Step 6:** Add from third numeral to n numeral and multiply by the repeated numeral and append to the previous result. If carry exists, add the carry to the previous result.

**Step 7:** Do this until (n-1) + n.

**Step 8:** Add n-1 and n and multiply by the repeated numeral and append to the previous result. If carry exists, add the carry to the previous result.

**Step 9:** Finally, multiply nth digit by the repetitive numeral and append to the previous result. If carry exists, add the carry to the previous result.

**Step 10:** Now add the two values

**Step 11:** Final answer obtained is '1386528'.

Multiplying *Four Digit Number by 4 digit Repetitive Numbers* is made easier using this Mental Maths Multiplication Tricks and Tips.