Question

Resolva cada operação a seguir. (a) 9 − 3 = (h) 12 + 13 = (o) 22 + 23 + 24 = (b) 12 − 13 = (i) −12 − 13 = (p) −23 − 25 + 27 + 22 = (c) −19 + 13 = (j) 18 + 18 = (q) 30 + 10 − 20 − 20 = (d) −12 + 19 = (k) −19 − 19 = (r) −10 + 11 − 12 + 13 = (e) 19 − 12 = (l) 11 + 10 − 27 = (s) 15 − 16 + 17 − 18 = (f) 21 − 21 = (m) −11 − 10 + 27 = (t) −19 + 16 + 17 − 22 = (g) −38 + 38 = (n) −9 − 8 − 10 = (u) −282 + 397 − 253 =

se puderem me ajudar muito obrigada bjss...

Answer 1

Oie, tudo bom?

a)

= 9 - 3

= 6

b)

= 12 - 13

= - 1

c)

= - 19 + 13

= - 6

d)

= - 12 + 19

= 7

e)

= 19 - 12

= 7

f)

= 21 - 21

= 0

g)

= - 38 + 38

= 0

h)

= 12 + 13

= 25

i)

= - 12 - 13

= - 25

j)

= 18 + 18

= 36

k)

= - 19 - 19

= - 38

l)

= 11 + 10 - 27

= 21 - 27

= - 6

m)

= - 11 - 10 + 27

= - 21 + 27

= 6

n)

= - 9 - 8 - 10

= - 17 - 10

= - 27

o)

= 22 + 23 + 24

= 45 + 24

= 69

p)

= - 23 - 25 + 27 + 22

= - 48 + 49

= 1

q)

= 30 + 10 - 20 - 20

= 40 - 40

= 0

r)

= - 10 + 11 - 12 + 13

= - 22 + 24

= 2

s)

= 15 - 16 + 17 - 18

= 32 - 34

= - 2

t)

= - 19 + 16 + 17 - 22

= - 41 + 33

= - 8

u)

= - 282 + 397 - 253

= - 535 + 397

= - 138

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