Question

Решите плиз!!, ❤️❣️​

Answer 1

$1)\;-61.9-38.5=-(61.9+38.5)=-100.4\\2)\;-38.5-61.9=-(38.5+61.9)=-100.4\\3)\;-38.5+61.9=+(61.9-38.5)=23.4\\4)\;38.5-61.9=-(61.9-38.5)=-23.4$