Respuesta :
Answer:
Step-by-step explanation:
600+400=1000-40=960+8=968
- + and - sign has equal reactivity.
- First come first solve.
[tex]\\ \rm\Rrightarrow 600+400-40+8[/tex]
[tex]\\ \rm\Rrightarrow 1000-40+8[/tex]
[tex]\\ \rm\Rrightarrow 940+8[/tex]
[tex]\\ \rm\Rrightarrow 948[/tex]