Đáp án:
a,
6
,
28
×
18
,
24
+
18
,
24
×
3
,
72
6
,
28
×
18
,
24
+
18
,
24
×
3
,
72
=
18
,
24
×
(
6
,
28
+
3
,
72
)
=
18
,
24
×
(
6
,
28
+
3
,
72
)
=
18
,
24
×
10
=
182
,
4
=
18
,
24
×
10
=
182
,
4
b,
35
,
7
×
99
+
35
+
0
,
7
35
,
7
×
99
+
35
+
0
,
7
=
35
,
7
×
99
+
35
,
7
=
35
,
7
×
99
+
35
,
7
=
35
,
7
×
(
99
+
1
)
=
35
,
7
×
(
99
+
1
)
=
35
,
7
×
100
=
3570
=
35
,
7
×
100
=
3570
c,
17
,
34
×
99
+
18
−
0
,
66
17
,
34
×
99
+
18
-
0
,
66
=
17
,
34
×
99
+
17
,
34
=
17
,
34
×
99
+
17
,
34
=
17
,
34
×
(
99
+
1
)
=
17
,
34
×
(
99
+
1
)
=
17
,
34
×
100
=
1734
=
17
,
34
×
100
=
1734
d,
0
,
9
×
95
+
1
,
8
×
2
+
0
,
9
0
,
9
×
95
+
1
,
8
×
2
+
0
,
9
=
0
,
9
×
95
+
0
,
9
×
4
+
0
,
9
=
0
,
9
×
95
+
0
,
9
×
4
+
0
,
9
=
0
,
9
×
(
95
+
4
+
1
)
=
0
,
9
×
(
95
+
4
+
1
)
=
0
,
9
×
100
=
90
=
0
,
9
×
100
=
90
