Question

23×18 using identities​

Answer 1

$(20 + 3)(20 - 2) \\ (20)^{2} + (3 + ( - 2)) \times 20 + (3 \times - 2) \\ 400 + (1) \times 20 + ( - 6) \\ 400 + 20 - 6 \\ 420 - 6 \\ 414 \: \\ 414 \: is \: the \: answer \:$