Question

a) 25,38 + 2,31 =_____ + 25,38

b) 15,958 + _____ = 15,958 =____

c) _____+ 0 = 23,85

d)(____+ 12,85) + 9,47 = ( 9,47 + 12,8) + ____ = _____

e) 7,8 + _____ = 4,3 +_______ = _____

f) ( 16,3 + 28,7) + _____= ____+ (28,7 + 59,54) = _____

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Answer 1

Resposta:

a) 25,38 + 2,31 =2,31 + 25,38

b) 15,958 +0 = 15,958 =0

c) 23,85+ 0 = 23,85

d)(____+ 12,85) + 9,47 = ( 9,47 + 12,8) + ____ = _____

e) 7,8 + _____ = 4,3 +_______ = _____

f) ( 16,3 + 28,7) + _____= ____+ (28,7 + 59,54) = _____

Explicação passo-a-passo:

são as propriedades , comutativa, associativa, elemento neutro e distributiva