Question

what is the answer for estimate
7 x 47
121 x 2
823 x 3
183 x 4
673 x 8
i want answer of these number

Answer 1

7x47 is 329
121 x 2 is 242
823 x 3 is 2468
183 x 4 is 732
673 x 8 is 5384