WorksheetsPre F1
Total questions: 80
Worksheet time: 7mins
2
1
1
(a)
3
-2
2
(a)
1
3
-2
(a)
1
5
2
(a)
6
-1
4
(a)
7
-1
3
(a)
4
-3
5
(a)
8
1
-4
(a)
6
3
-2
(a)
9
-3
-5
(a)
4
-2
-2
3
(a)
8
-6
1
5
(a)
4
5
-6
1
(a)
5
3
-7
2
(a)
7
-7
8
1
(a)
9
-6
6
-3
(a)
8
-6
2
-1
(a)
3
5
-6
5
(a)
1
8
-9
4
(a)
9
-7
2
-1
(a)
5
13
31
(a)
39
-7
52
(a)
2
47
-25
(a)
96
-1
-35
(a)
3
86
-66
(a)
21
7
61
(a)
1
38
-11
(a)
5
12
61
(a)
56
-6
17
(a)
1
38
-12
(a)
38
-6
-12
9
(a)
7
42
-9
56
(a)
55
24
-9
4
(a)
1
68
-7
26
(a)
77
-5
6
-27
(a)
7
42
-35
-4
(a)
82
7
-8
-61
(a)
5
13
-2
73
(a)
78
-6
7
-55
(a)
4
25
-7
61
(a)
3
2
2
(a)
7
-6
4
(a)
9
-5
1
(a)
4
3
-5
(a)
2
2
3
(a)
9
-5
2
(a)
8
-6
4
(a)
7
-5
3
(a)
4
2
-6
-1
(a)
3
4
2
(a)
9
-5
2
3
(a)
3
3
-6
8
(a)
9
-5
1
3
(a)
6
3
-7
4
(a)
7
-6
4
-5
(a)
9
-6
2
2
(a)
6
3
-5
3
(a)
9
-8
3
4
(a)
8
-2
-5
4
(a)
9
-1
-5
2
(a)
75
-1
-32
5
(a)
4
23
-4
52
(a)
45
32
-4
6
(a)
9
50
-37
6
(a)
58
-31
-2
4
(a)
9
-7
53
-24
(a)
52
5
-36
8
(a)
2
34
41
-3
(a)
98
-73
31
-5
(a)
8
-4
65
-34
(a)
62
7
-8
-21
(a)
3
24
42
-8
(a)
24
3
-23
71
(a)
8
61
-27
5
(a)
97
-84
3
-2
(a)
5
1
73
-30
(a)
24
1
-3
52
(a)
9
10
-8
47
(a)
54
-32
6
-4
(a)
9
-6
53
-33
(a)
