Oblicz:
(-3.6)*4/9
(2,1)*(-4 2/7)
-7/8:(-5,6)
9/10:(-3/4)
(-1 1/2):(-0,06)
(-2 2/3):1,2
2/3:(-6)
(-0,45):1 4/5
(-2.75):(-2,2)
(-3,5(:(-1 2/5)
Oblicz:
-2-3*5
(-8):4-2
12:(-2)-(-3)
(-2)³3*3-25
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2

Odpowiedzi

2010-04-13T16:34:21+02:00
A) -36/100 * 4/9 = 144/900
b) 2,1 * (-42/7) = 21/100 * -30/7 = 630/700
2010-04-13T16:48:54+02:00
(-3.6)*4/9 = (-36/10) * 4/9 = -144/90= -1 54\90 = -1 3/5
(2,1)*(-4 2/7) = 21/10 * (-30/7) = -630/70= -9
-7/8:(-5,6) = (7/8) * (-6/5) = 42/40 = 1 1/20
9/10:(-3/4)= 9/10 * (-4/3) = -36/30 = -1 1/5
(-1 1/2):(-0,06) = (-3/2) * (-6/100)= 18/200 = 9/100
(-2 2/3):1,2 = (-8/3) * 3/2 = -24/6= -4
2/3:(-6)= 2/3 * (-1/6) = -2/18 = -1/9
(-0,45):1 4/5 = (-45/100) * 5/9 = -225/900 = 1/4
(-2.75):(-2,2) = (-275/100 ) * (-22/10)= 6050/1000= 6 50/1000 = 6 1/20
(-3,5):(-1 2/5)= (-35/10)*(-7/5) = 245/50= 4 45/50 = 4 9/10


2-3*5=2-15=-13
(-8):4-2=-2-2=-4
12:(-2)-(-3)= -6-(-3)=-6+3=-3
(-2)³3*3-25 = -8*3*3-25=-72-25=-97
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