Question

1) Calcule:
a) +5 + 3 =
b) +1 + 4 =
c) +20 +40 =
d) -3 - 1 =
e) -8 -12 =
f) -10 - 15 =

2) Calcule:
a) ( -22) + ( -19) =
b) (+32) + ( +14) =
c) (-25) + (-25) =
d) (-94) + (-18) =
e) (+105) + (+105) =
f) (-280) + (-509) = 3) Calcule:
a) +1 - 6 =
b) -9 + 4 =
c) -3 + 6 =
d) -8 + 3 =
e) -9 + 11 =
f) +15 - 6 =
g) -2 + 14 =
h) +13 -1 =
i) +23 -17 =
j) -14 + 21 =
k) +28 -11 =
l) -31 + 30 =


4) Calcule:

a) (-8)+(+10)-(+7)+(-2)=

d) (-1)+(-6)+(-3)-(-4)+(-5)=
b) (+20)-(-19)+(-13)+(-8)=
e) (+10)+(-20)-(-15)+(+12)+(-30)-(-40)=
c) (-5)+(+8)-(+2)-(+9)=
f) (-4)+(-8)-(+7)-(-9)=

Answer 1

1) Calcule:

a) +5 + 3 = +8

b) +1 + 4 = +5

c) +20 +40 = +60

d) -3 - 1 = -4

e) -8 -12 = -20

f) -10 - 15 = -25

2) Calcule:

a) ( -22) + ( -19) = -41

b) (+32) + ( +14) = +46

c) (-25) + (-25) = -50

d) (-94) + (-18) = -112

e) (+105) + (+105) = +210

f) (-280) + (-509) = -789

3) Calcule:

a) +1 - 6 = -5

b) -9 + 4 = -5

c) -3 + 6 = +3

d) -8 + 3 = -5

e) -9 + 11 = +2

f) +15 - 6 = +9

g) -2 + 14 = +12

h) +13 - 1 = +12

i) +23 - 17 = +6

j) -14 + 21 = +7

k) +28 -11 = +17

l) -31 + 30 = -1

4) Calcule:

a) (-8)+(+10)-(+7)+(-2) =

-8 + 10 - 7 - 2

2 - 7 - 2

-5 - 2

-7

d) (-1)+(-6)+(-3)-(-4)+(-5) =

-1 - 6 - 3 + 4 - 5

-7 - 3 + 4 - 5

-10 + 4 - 5

-6 - 5

-11

b) (+20)-(-19)+(-13)+(-8) =

20 + 19 - 13 - 8

39 - 13 - 8

26 - 8

+18

e) (+10)+(-20)-(-15)+(+12)+(-30)-(-40) =

10 - 20 + 15 + 12 - 30 + 40

-10 + 15 + 12 - 30 + 40

5 + 12 - 30 + 40

17 - 30 + 40

-13 + 40

+27

c) (-5)+(+8)-(+2)-(+9) =

-5 + 8 - 2 - 9

3 - 2 - 9

1 - 9

-8

f) (-4)+(-8)-(+7)-(-9) =

-4 - 8 - 7 + 9

-12 - 7 + 9

-19 + 9

+10

Espero ajudar.