Berechne die Ergebnisse.
9 • (−9) =9\ •\ (-9)\ =9 • (−9) =
9 • (−9) = −819\ •\ (-9)\ =\ -819 • (−9) = −81
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+ • − = −+\ •\ -\ =\ -+ • − = −
−60 : (−5) = -60\ :\ \left(-5\right)\ =\ −60 : (−5) =
−60 : (−5) = 12-60\ :\ \left(-5\right)\ =\ 12−60 : (−5) = 12
− : − = +-\ \ :\ -\ =\ +− : − = +
−7 ⋅7 = -7\ \cdot7\ =\ −7 ⋅7 =
−7 ⋅7 = −49-7\ \cdot7\ =\ -49−7 ⋅7 = −49
− ⋅ + = −-\ \cdot\ +\ =\ -− ⋅ + = −
−72 : 9 =-72\ :\ 9\ =−72 : 9 =
−72 : 9 = −8-72\ :\ 9\ =\ -8−72 : 9 = −8
− : + = −-\ :\ +\ =\ -− : + = −
13 ⋅ (−6) = 13\ \cdot\ \left(-6\right)\ =\ 13 ⋅ (−6) =
13 ⋅ (−6) = −7813\ ⋅\ (−6)\ =\ -7813 ⋅ (−6) = −78
+ ⋅ − = −+\ \cdot\ -\ =\ -+ ⋅ − = −
−91 : (−7) = -91\ :\ \left(-7\right)\ =\ −91 : (−7) =
−91 : (−7) = 13-91\ :\ \left(-7\right)\ =\ 13−91 : (−7) = 13
− : − = +-\ :\ -\ =\ +− : − = +
10 ⋅ 16=10\ \cdot\ 16=10 ⋅ 16=
10 ⋅ 16 = 16010\ \cdot\ 16\ =\ 16010 ⋅ 16 = 160
+ ⋅ + = ++\ \cdot\ +\ =\ ++ ⋅ + = +
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