1) -60:(56-59+3*(-1)) 2) (-9-12:(-3)-3)*4
3) -100*(-0,09)+5*(-0,01)
4) (1/6 - 3/4) * (-9)
5) 35/54:(5/6-2)
6) (2,9-7,1) : (-0,7)
7) 18:(-18,4-8,6)
8) (- одна целая 1/7) : 0,8 + 2,2 * ( - 5/11)
Уравнения:
9) -x *(-0,6) = -240
10) x:(-2,8)=0,15
11) -3/7x = 27/28
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