Question

without actual multiplication find the square of

(1) 98


(2) 1003

(3) 999

(4) 10.8​

Answer 1

Answer:

98 can be written as =(100-2)

then it's square would be

(100-2) square= 100square + 2square - 2×100×2

10000+4- 400= 9604

square of 98= 9604

and in this way you could answer other questions related to this

Answer 2

Hope this answer in pic helps uu!!