Прямые: BAD KMF DKB OAS
Тупые: BCD BAK
1)
0.98
+
0.70
----------
1.68
2)
1.68
-
0.27
---------
1.41
3)
0.69
-
0.49
----------
0.2
4)
1.41
*
0.2
--------
0.282
ответ:0.282
18 + (16 - х) * 8 = 90
(16 - х) * 8 = 90 - 18
(16 - х) * 8 = 72
16 - х = 72 : 8
16 - х = 9
х = 16 - 9
х = 7
1) 4 - 2.6 = 1.4
2) 4.3 × 1.4 = 6.02
3) 1.08 ÷ 1.2 = 0.9
4) 6.02 + 0.9 = 6.92