Question

Calcule:

a) – 8 – ( 2 + 3) =

b) – 20 – ( 5 – 1 ) =

c) – 16 – 9 – ( 4 + 3) – ( -12 + 7) =

d) ( - 3 + 6 – 11) – ( - 1 2 – 15 + 16) + ( 17 – 20 + 3) =

e) – (- 8 + 1) – ( - 9 – 3) =

f) ( -1 – 2 – 3) – ( +7 -6 +8) =

g) (-5 + 3 – 10) – ( -16 + 8 - 9) =​

Answer 1

a) $-8-(2+3)=-8-5=-13$

b) $-20-(5-1)=-20-4=-24$

c) $-16-9-(4+3)-(-12+7)=-25-7-(-5)=-32+5=-27$

d) $(-3+6-11)-(-12-15+16)+(17-20+3)=-8-(-11)+0=-8+11=3$

e) $-(-8+1)-(-9-3)=-(-7)-(-12)=7+12=19$

f) $(-1-2-3)-(7-6+8)=-6-9=-15$

g) $(-5+3-10)-(-16+8-9)=-12-(-17)=-12+17=5$