Multiply

When I multiply:

3.142 × 4(2) × 4 =it's equal

=201.088

Do i make something wrong?

Yep when numbers are written in brackets it is standard practise to multiply so the sum should read 3.142 x 4 x 2 x 4 = 100.544

Writing it another way would be (3.142 x 4)(2)(4) = so you are doing 3,142 x 4 first, then multiplying that by 2 then again by 4.