Toán Lớp 6: a, -20 – 30 =
b, ( -25 ) + ( -40 ) =
c, ( -100 ) + ( -120 )
Mn giúp tui nha.Cảm ưn mn!!!!!
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Toán Lớp 6: a, -20 – 30 =
b, ( -25 ) + ( -40 ) =
c, ( -100 ) + ( -120 )
Mn giúp tui nha.Cảm ưn mn!!!!!
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