45-(-15:3)=5-(20+15)=25+(-5:1)=-20×(16:(-4)+(5×2)=
45 - ((-15) ÷ 3)
= 45 - (5)
= 45 + 5
= 50
[tex] \\ [/tex]
5 - (20 + 15)
= 5 - 35
= -(35 - 5)
= -30
[tex] \\ [/tex]
25 + ((-5) ÷ 1)
= 25 + (-5)
= 25 - 5
= 20
[tex] \\ [/tex]
20 × (16 ÷ (-4)) + (5 × 2)
= (20 × (-4)) + 10
= -80 + 10
= -(80 - 10)
= -70
[answer.2.content]