October 2023 1 5 Report
Verificar mentalmente cuales son igualdades numéricas y completar con igual o desigual.
a) 20 + 30 ____ 150 - 100.
b) 5 + (6 - 3) ____ 5 + 6 - 3.
c) 10 - 3 ____ 21 - 19.
d) 18 : 3 +6 ____ 18 : (3 + 6).
e) 3 . (4 + 5) ____ 3 . 4 + 3 . 5.

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