Podajcie mi pare przykładów działań z liczbami całkowitymi (dodawanie, odejmowanie, dzielenie, mnożenie).
1. dodawanie
3 + 5 = 8 (-3) + (-5) = -8(-3) + 5 = 5 - 3 = 23 + (-5) = 3 - 5 = -2
2. odejmowanie
3 - (-5) = 3 + 5 = 8 4 - (3 - 5 + 4) = 4 - 3 + 5 - 4 = 2
3. mnożenie
3*7=21
-3*(-7)= 21
3*(-7)= -21
4. dzielenie
(-1) : (-1) = 1 21 : (-1) = (-21).21 : 3 = 7(-21) : (-3) = = 21 : 3 = 7
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1. dodawanie
3 + 5 = 8
(-3) + (-5) = -8
(-3) + 5 = 5 - 3 = 2
3 + (-5) = 3 - 5 = -2
2. odejmowanie
3 - (-5) = 3 + 5 = 8
4 - (3 - 5 + 4) = 4 - 3 + 5 - 4 = 2
3. mnożenie
3*7=21
-3*(-7)= 21
3*(-7)= -21
4. dzielenie
(-1) : (-1) = 1
21 : (-1) = (-21).
21 : 3 = 7
(-21) : (-3) = = 21 : 3 = 7