Question

TAREA 7
1.- REDUCIR
a) +6 + 5 =11 b) +4 + 8 =12 c) +10 + 7 =
d) –6 – 2 = -8 e) –4 – 6 =-10 f) –5 – 9 =
g) +8 + 7 =15 h) –8 – 7 = i) –12 – 4 =

a) +9 – 5 = 4 b) +3 – 7 = c) +6 – 10 =
d) –2 + 7 =5 e) –15 + 5 = f) –11 + 8 =
g) 7 – 12 = -5 h) 11 – 4 = i) –18 + 10 =

Calcula.
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 =


2.- EFECTUAR

a) 2 – 4 – 5 + 8 = +10 – 9 = +1
b) 6 – 7 + 4 – 3 =
c) 5 + 8 – 9 – 6 =
d) –4 – 9 + 6 + 2 =
e) –3 – 5 + 7 + 7 =
f) –4 – 8 – 2 – 5 =
g) 5 + 7 – 2 – 4 =
h) 2 – 6 + 4 – 9 =
i) 9 – 6 – 7 + 2 =
j) –4 – 5 + 3 + 8 =
k) –8 + 2 – 7 + 6 =
l) –1 + 5 + 6 – 7 =

Answer 1

TAREA 7
1.- REDUCIR
a) +6 + 5 =11
b) +4 + 8 =12
c) +10 + 7 = +17
d) –6 – 2 = -8
e) –4 – 6 =-10
f) –5 – 9 = -14
g) +8 + 7 =15
h) –8 – 7 = -15
i) –12 – 4 = -16

a) +9 – 5 = 4
b) +3 – 7 = -4
c) +6 – 10 = -4
d) –2 + 7 =5
e) –15 + 5 = -10
f) –11 + 8 = -3
g) 7 – 12 = -5
h) 11 – 4 = 7
i) –18 + 10 = -8

Calcula.
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


2.- EFECTUAR

a) 2 – 4 – 5 + 8 = +1
)+10 – 9 = +1
b) 6 – 7 + 4 – 3 = 0
c) 5 + 8 – 9 – 6 = -2
d) –4 – 9 + 6 + 2 = -5
e) –3 – 5 + 7 + 7 = +6
f) –4 – 8 – 2 – 5 = -19
g) 5 + 7 – 2 – 4 = +6
h) 2 – 6 + 4 – 9 = -9
i) 9 – 6 – 7 + 2 = -2
j) –4 – 5 + 3 + 8 = +2
k) –8 + 2 – 7 + 6 = -7
l) –1 + 5 + 6 – 7 = +3