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a) 12 : (-3) + (-3) * 4 = (-4) + (-12) = (-16)
b) -40 : (2 +3) * 4 = -40 : 5 * 4 = -8 * 4 = -32
c) -40 : [(2 + 3) * 4] = -40 : [5 * 4] = -40 : 20 = -2
d) 40 : (-8) - (-2) * (2 - 4) = -5 - (-2) * (-2) = -5 - 4 = -9
e) 40 : [(-8) + (-2)] * (2 - 4) = 40 : (-10) * (-2) = -4 * (-2) = 8
f) -2 * (4 + (-5)) + 4 * (-2 - (-5)) = -2 * (-1) + 4 * 3 = 2 + 12 = 14
g) -2 * (4 + (-5)) + 2 * (-4 - (-5)) = -2 * (-1) + 2* 1 = 2 + 2 = 4
h) -12 : (-3 + (-4) - (-5)) : 3 = -12 : (-2) :3 = 6 :3 = 2
3)
a) 5 < (-31)
b) 10 > (-10)
c) 48 > (-40)
d) 7 < 15
e) 2 = 2
f) 7 > (-12)
4)
a) (-8 + (-6) + (-4) + (-2))+ (0 + 2 + 4 + 6 + 8 + 10) = -20 + 30 = 10 F
b) (-9 + (-7) + (-5) + (-3) + (-1)) + (1 + 3 + 5 + 7 + 9) = -25 + 25 = 0 P
Jeśli miała byś jakieś problemy z matmą, pisz śmiało a spróbuję pomóc. :)
Powodzenia! :)