Okay so read in your amount cheered. Then multiply by 10.

Code:
on $*:text:/(^|\s)cheer\d+(\s|$)/i:#: {
  %bit.bonus = $msgtags(bits.key) * 10
  if (($msgtags(room-id).key == ROOM ID) && ($msgtags(bits).key)) {
    msg # !bonus $msgtags(display-name).key %bit.bonus
  }
}


Try that.

**Warning untested**

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