Question

Calcule:

( + 10 ).( – 12 ).( + 1 ).( – 3 ).( + 2 ) =
( – 3 ).( - 2 ).( – 1 0).( + 4 ) =
( – 2 ).( – 2 ).( – 2 ).( – 2 ) =
( + 3 ).( + 3 ).( - 3 ).( - 3 ) =
( - 1 ) . ( -12 ) . ( + 57 )=

Answer 1

Olá, boa noite!

(+10) × (-12) × (+1) × (-3) × (+2)=

10 × (-12) × (-3) × 2

10 × 12 × 3 × 2

120 × 3 × 2

360 × 2

720

(-3) × (-2) × (-10) × (+4)=

-(3×2×10×4)

-(30×2×4)

-(60×4)

-240

(-2) × (-2) × (-2) × (-2)=

2×2×2×2

16

(+3) × (+3) × (-3) × (-3)=

3×3×3×3

81

(-1) × (-12) × (-57) =

1×12×57

12×57

684

espero ter ajudado, bons estudos ;)