Oblicz wartości wyrażeń, stosując właściwą kolejność działań. [64:(-2)-(-7)-(9)]x(-2)-6-6)=
2 2/3-1 1/4x(-12)-(-5)+(-21)x2=
4 (do kwadratu )-5x2,4+9+(-18):(-1/3)=
(3/4-1 1/2)x0,005= 1/3:(1/2-3 2/3x3/2):5=
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[64 :(-2)-(-7)-(9)]*(-2)-6-6 = [-32+7 -9 -6-6] *(-2)-6-6= -46 *(-2)-6-6=92 -12 = 80
2i2/3 -1i1/4 * (-12)-(-5)+(-21)*2= 2i2/3 -5/4*(-12)+5 -42= 2i2/3-5/1*(-3) +5-42=
= 2i2/3 + 15 +5 -42 = 22 i 2/3 -41i 3/3 = - 19i 1/3
4^2 -5 *2,4 +9 +(-18):(-1/3)= 16 - 12 +9 +(-18)*(-3)= 13 +54 = 67
(3/4 -1i1/2) * 0,005 = 1/3 : (1/2- 11/3 *3/2):5
(0,75 -1,5) *0,005 = 1/3: (1/2 - 11*1/2) :5
-0,8 *0,005= 1/3:(1/2- 11/2):5
- 0,004 = 1/3 :(-10/2):5
- 0,004 = 1/3 *(-2/10) :5
-0,004 = -2/30 *1/5
- 0,004 = -2/150
-4/1000 = - 1/75
- 1/250 = - 1/75