Question

398,45-239,16+8888,453*23,56

Answer 1

398,45-239,16+8888,453*23,56=159,29+209411,95268=209571,24268

или если запятые значат что то другое, то

398,45-239=159,45

16+8888=8904,

453*23,56=10717,98

Answer 2

1)398,45-239,16=159,29                                                                                               2)8888.453*23,56=209411,95268                                                                                   3)159,29+209411,95268=209541,24268