Odpowiedź:
a][-100] x 8/25= -32
b] 1/2/3 x [-6/25] = 5/3 x [-6/25] = 2/5
c] [-2/2/5] x [-3/3/4] = -12/5 x [-15/4] =9/1=9
d] [-9,45] x 0,28 = -2,646
e] 0,04 x [-0,27] = -0,108
f] [-3,6] x 4/9 = 36/10 x 4/9 = -16/10 = -1,6
g] [-2,1] x [-4/2/7] = 21/10 x [-30/7] = 9
h]-7/8 : [-5,6] = -7/8 : [-56/10] = 7/8 x [10/56] = 5/32
i] 9/10 : [-3/4] = 9/10 x [-4/3] x = -6/5 = -1/1/5
j] [-1/1/2] : [-0,06] = [-3/2] : [-6/100] = -3/2 x -100/4 = 50/2 = 25
k] [-2/2/3] : 1,2 = -8/3 : 12/10 = -8/3 x 10/12 = -20/9 = -2/2/9
l] 2/3 : [-6] = 2/3 x [-1/6] = -1/9
m] [-0,45] : 1/4/5 = [45/100] : 9/5 = 9/20 x 5/8 = 1/4
n] [-2,75] : [2,2] = [-2/3/4] : [-2/2/10] = [-11/4] x [-10/22] = 5/4 = 1/1/5
to było zadanie 3
zadanie 6
a] -2 - 3 x 5 = -2 - 15 = 17
b] [-8] : 4 -2 = 4 - 2 = 6
c] 12 : [-2] - [-3] = -6 - [-3] = -3
d] [-2] do potęgi 3 x - 25 = [-2] x [-2-2] x - 25 = -8 x 3 - = -24 - 25 = -49
e] [-15] : -5 x [-1] = -5 x 5x[-1] = 25 x [-1] = 25
f] 3 x [-7] -7 x [-2] = -21 - [-14] = -21 + 14 =7
g] 6 x [-4] + 5 X [-9] = 24 + [-45] = -69
h] [-18] : 9 - [27: [-1] = -2 -27 = -29
i] 24 - 36/4 -7 = -12/4 -7 = -3-7 = -10
j] -9 -6/-3 x [-4] = 15/3 x [-4] = -5 x [-4] = -5 x [-4] = 720
k] -9 + 5 x [-11]/4 -1 = -9+[-55]/4 -1 = -64/4 -1 = -16 -1 = -17
l] 4 x -1-3/-1-3 = 4 x -4/-5 = 4/1 x -4/-5 = -16/-3 = 3/1/5
Proszę żebyś jeszcze to przejrzał/a bo mogłam się gdzieś pomylić
liczę na najjj :]
Szczegółowe wyjaśnienie: