Sagot :
Calculez :
(-3)+(+5) =2
(-4)-(-3) =-1
(-2.5)+(+1.2) =-1,3
(+4.1)-(+8)=-3,9
Simplifiez et Calculez :
(+2)-(-3)+(-5)+(+4)-(+2)=-4
(16.7)-(-3.2)+(+4.8)-(+3.3)=6,4
Calculez :
12-6+5=11
24-6:2=21
5x[4+(2+3x6)]=120
42-4x9=29
Calculez en respectant les règles de propriété :
(+7)-(-3+5)+(4-(-3)) =12
(-2)-[2-(-3+5)]=-2
Calculez :
(-3)+(+5) =2
(-4)-(-3) = -4+3
= -1
(-2.5)+(+1.2) = -1.3
(+4.1)-(+8) = 4.1+(-8)
= -3.9
Simplifiez et Calculez :
(+2)-(-3)+(-5)+(+4)-(+2)= 2+3+(-5)+4+(-2)
= 9+(-7)
= 2
(16.7)-(-3.2)+(+4.8)-(+3.3)= 16.7+3.2+4.8+(-3.3)
= 24.7+(-3.3)
= 21.4
Calculez :
12-6+5= 6+5
= 11
24-6:2 = 18:2
= 9
5x[4+(2+3x6)] = 5x [4+(2+18)]
= 5x (4+20)
= 5x24
= 120
42-4x9=42-36
= 6
Calculez en respectant les règles de propriété :
(+7)-(-3+5)+(4-(-3))= 7-2+7
= 12
(-2)-[2-(-3+5)]= -2- [-2-2]
= -2-(-4)
= -2+4
= 2
