Question

2*22/7*10*10=
$2 \times \pi \times 10 \times 10$

Answer 1

2×22/7×10×10
2×22/7×100
applying 2 and 100
200× 22/7
multiply 200 and 22
4400/7

ans 628.571

this number goes on till the end but I think 3 digits are enough