Question

6. Calcular las siguientes sumas y restas.

a) +6 – 7 = b) –8 + 7 = c) –5 – 1 = d) +8 + 2 = e) +10 – 12 = f) –16 + 20 = g) +11 + 21 = h)

–13 – 12 = i) –18 + 11 =

7. Calcular.

a) 9 – 2 – 3 = b) 12 – 4 – 6 = c) 3 – 7 + 4 =

d) 5 – 9 + 8 = e) –13 + 6 + 4 = f) –2 + 10 – 15 =

g) –11 – 4 + 8 = h) –5 – 3 – 4 = i) –8 + 5 + 6 =​

Answer 1

Respuesta:

a) +6 – 7 =-1

b) –8 + 7 = -1

c) –5 – 1 = -6

d) +8 + 2 =10

e) +10 – 12 -2

f) –16 + 20 =4

g) +11 + 21 = 32

h)–13 – 12 = -25

i) –18 + 11 = -7

7. Calcular.

a) 9 – 2 – 3 =4

b) 12 – 4 – 6 =2

c) 3 – 7 + 4 = 0

d) 5 – 9 + 8 =4

e) –13 + 6 + 4 =-3

f) –2 + 10 – 15 = -7

g) –11 – 4 + 8 = -7

h) –5 – 3 – 4 =-12

i) –8 + 5 + 6 =3