Question

D AU COROONIITAAA!!

a) -21-(-13)-15-(+25)
b) (-21)×(+10):(-70)
c)(-2)³×(-2)⁷⁰:4³⁵
d)-45:(-3)×20

Vaa rogg!!

Answer 1

a)

-21-(-13)-15-(+25)=

= - 21+13-15-25 =

= - 8 - 15 - 25 =

= - 23 - 25 =

= - 48

b)

(-21)*(+10):(-70)=

= - 210 : (-70) =

= +3

c)

(-2)^3*(-2)^70:4^35=

= - 2^3 * 2^70 : 4^35 =

= - 2^73 : (2^2)^35 =

= - 2^73 : 2^70 =

= - 2^3=

= - 8