Question

how to work out the square of 25 in shortest method​

Answer 1

Answer:

Step-by-step explanation:

• first write the square of 5 that is 25

• then take the consecutive number of the number in tens digit and multiply it

okay in simple words if it is 2 you will do 2×3

                                   if it is 3 you will do 3×4

                                   if it is 6 you will do 6×7

so square of 25 will be 2×3 = 6

square of 5 = 25

the answer is 625

square of 45⇒4×5 = 20

square of 5 = 25

the answer is 2025

square of 75⇒ 7×8= 56

square of 5 = 25

the answer is 5625

only applicable to numbers ending with the digit 5