Calculer chaque différence

a) (+8)-(-4)

b) (-4)-(+10)

c) (-13)-(-3)

d) (+15)-(-15)

e) (-22)-(-22)

f) (+7)-(+12)

2
a= (+8)-(-4) / a= 8+4 / a= 12 ; b= (-4)-(+10) / b= -4-10 / b=-14 ; c= (-13)-(-3) / c= -13+3 / c= -10 ; d= (+15)-(-15) / d= 15+15 / d= 30 ; e= (-22)-(-22) / e= -22+22 / e= 0 ; f= (+7)-(+12) / e= 7-12 / e= -5

Réponses

2013-09-15T19:47:50+02:00
2013-09-15T19:50:04+02:00
A=+8-4=4
b=-4+10= 6
c=-13-3= -16
d=+15-(-15)= 30
e=-22-(-22)=  0
f=+7-(+12)= -5