Question

2) Complete as igualdades
a) 9 + 1 = + 9
b) 3 + 6 = 6 +
c) 10+ 3 =
d) 5 + 7 =
e) 2 + 8 =
f 4 + = 1 + 4
g) 3 +
h) 5+ (2 + 3) = (+ 2) + 3
1) 7 + (6 + 4) = (7 + 6) +
1) 2 + ( + 5) = ( + 1) + 5
k) 8 + (9 + __.) = (+9) + 3
1) + (2 + 1) = (5 + +
m)A + (b + c) = ( + + c
n) (5 + 3) + 7 = 5 + +
Faca​

Answer 1

Explicação passo-a-passo:

c) 10+ 3 =13

d) 5 + 7 =12

e) 2 + 8 =10