Soustraction – Nombres relatifs – Exercices corrigés : 9eme Harmos
1/ Effectue les calculs suivants :
a. (+16) – (-9) = ____________________________
b. (-43) – (-4) = ____________________________
c. (+78) – (+67) = ___________________________
d. (-16) – (+56) = ___________________________
e. (-69) – (+48) = ___________________________
2/ Effectue les calculs suivants :
a. (+6,7) – (-8,7) = __________________________
b. (+ 5,2) – (+18,9) = ________________________
c. (-34,9) – (-6,9) = _________________________
d. (-7,54) – (+4,67) =________________________
e. (-43,9) – (+8,76) = ________________________
3/ Effectue les calculs en regroupant les termes de même signe.
a. (+34) – (-78) – (-9) – (+11)
=_______________________________________
=_______________________________________
=_______________________________________
b. (-31) – (+76) – (-7)
=_______________________________________
=_______________________________________
=_______________________________________
c. (-33) – (+46) – (-88)
=_______________________________________
=_______________________________________
=_______________________________________
4/ En regroupant deux par deux les termes, calcule le plus simplement possible chaque somme.
a. (+6,7) – (-7,3) – (+6,7)
=_______________________________________
=_______________________________________
=_______________________________________
b. (-4,5) – (-5,6) – (+0,5) – (-8,4)
=_______________________________________
=_______________________________________
=_______________________________________
=_______________________________________
c. (+13,67) – (-2,77) – (+ 1,67) – (-1,23)
=_______________________________________
=_______________________________________
=_______________________________________
5/ Calcule mentalement les expressions qui suivent :
a. (-87) – (+6) = ____________________________
b. (-52) – (-74) = ___________________________
c. (+39) – (-54) = ___________________________
d. (-18) – (-17) = ___________________________
e. (-4) – (+15) = ____________________________
6/ On a les points suivants : A (4,5); B (-3,3) et
C (6,6).
Calcule les distances AB, AB et BC.
Soustraction – Nombres relatifs – Exercices corrigés : 9eme Harmos rtf
Soustraction – Nombres relatifs – Exercices corrigés : 9eme Harmos pdf
Correction
Correction – Soustraction – Nombres relatifs – Exercices corrigés : 9eme Harmos pdf
