1
1
-3,2+3,2=0
2
-5*(-38/15)=38/3
3
12*00.5-7=-6.4
4
3-1.5*(-1/3)=3.5
5
(2*(-1)-1/3)/(-1-3* 1/3) = -7/3 / -2 = 7/6
2
а
76/5 - 23/2 = 37/10
б
36/5 * 25/12 = 15
в
4,5-5,8-13,7+2,4=-12,6
г
1,365 : (-0,21) = -1365/210 = -13/2
д
36/5 * 25/12 : (76/5-23/2) = 15 * 10/37 = 150/37
3
а
17*32 / 100 = 2,24
б
33,48*100 / 54 = 62
в
38*100 / 200 = 19%
4
21/y=14/4
21*4=y*14
y=6
5
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