Question

competati casetele dupa egula alaturata: a+b​

Answer 1

a) a=16+2=18

b=13+2=15

c=13+25=38

d=18+15=33

e=15+38=53

f= 33+53=86

b) a=20-15=5

b=10-8=2

c=5+2=7

d=20+7=27

e=10+7=17

f=27+17=44

Answer 2

a )

a = 16 +2 =

= 18

b = 2 + 13 =

= 15

c = 13 +25 =

= 38

d = a + b =

= 18 + 15 =

= 33

e = b + c =

= 15 + 38 =

= 53

f = d + e =

= 33 + 53 =

= 86

b )

a = 20 - 15 =

= 5

b = 10 - 8 =

= 2

c = a + b =

= 5 + 2 =

= 7

d = 20 + c =

= 20 + 7 =

= 27

e = 10 + c =

= 10 + 7 =

= 17

f = d + e =

= 27 + 17 =

= 44