Answer: Step by Step explanation :- we can solve the following using tricks ,without long calculation .. a) 75^2 = 5×5= 25 7 ×8= 56 answer = 5625 b) 78 × 11 = 858 c) 45^2 = 5^2 = 25 4×5 = 20 answer = 2025 d) 89 × 22 = 1958 Reply
Answer:
Step by Step explanation :-
we can solve the following using tricks ,without long calculation ..
a) 75^2 =
5×5= 25
7 ×8= 56
answer = 5625
b) 78 × 11
= 858
c) 45^2 =
5^2 = 25
4×5 = 20
answer = 2025
d) 89 × 22
= 1958