Question

01. Shown below is a method to the product 46×28

4×2=8 8×100 800


(4×8)+(6×2)=44 44×10 440


6×8 48
46×28 1288


i) Check this method for some other two digit numbers.

ii) Explain why this is correct, using algebra.​

Answer 1

In the given figure, straight lines AB and CD intersect at 0. If the magnitude of B is four times that of a then (B) 14- (A) 100 (C) 1489 (D) 150-