Multiplication Trick 3

Condition : This trick is used when we multiply quickly two numbers and a number is made by digit 9.

Example. 75×99 , 95×999 ,115×99 , 1259×999

Illustration 1 :
175×999

Solution:
1st part / 2nd part

step 1→ 175-1 /
step 2→ 174 / 999-174
step 3→ 174 / 825
Answer is 174825

Illustration 2 :
258×99999

Solution:
1st part / 2nd part

step 1→ 258-1 /
step 2→ 257 / 99999-257
step 3→ 257 / 99742

Answer is 25799742

Illustration 3 :
564×99

Solution:
1st part / 2nd part

step 1→ 564-1 / No
step 2→ 563 / No
step 3→ 56399-563 / No

Answer is 55836

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