1.

Find the product: 19 × 161. 2942. 3043. 3144. 2845. 324

Answer» Correct Answer - Option 2 : 304

Solution:-

Concept used:-

Trick to multiply two numbers between 10 and 20.

Method:-

  • Add the unit digit of the smaller number to the larger number.
  • Then, multiply the result by 10.
  • Now, multiply the unit digits of both the 2-digit numbers.
  • Then add both the numbers.

Calculation:-

Step 1 & 2:- (19 + 6) × 10 = 250

Step 3:- 9 × 6 = 54

Step 4:- 250 + 54 = 304

This is our final answer.



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