January 2023 1 10 Report
10 Classifique as igualdades a seguir em ver- dadeira (V) ou falsa (F).
a) ( ) 34- (-7) = 34 + 7
b) ( ) (-10) + 15 = 15 - 10
c) ( ) (-20) - (+18) = 20 + 18
d) ( ) 15 - (+5) = 15 - 5
e) ( ) -30 - (-20) = 20 + 30​
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