Adding 2-Digit Numbers and Ones
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1.
49+2=
11.
82+1=
2.
20+9=
12.
16+8=
3.
15+4=
13.
18+1=
4.
53+9=
14.
51+3=
5.
15+6=
15.
21+8=
6.
52+2=
16.
65+3=
7.
55+9=
17.
18+7=
8.
16+5=
18.
52+1=
9.
68+7=
19.
47+4=
10.
21+6=
20.
34+5=
twinkl.co.uk
Page 1 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1.
20+3=
11.
78+7=
2.
31+6=
12.
27+4=
3.
48+7=
13.
14+3=
4.
38+6=
14.
90+1=
5.
46+5=
15.
32+2=
6.
19+7=
16.
18+7=
7.
35+3=
17.
47+7=
8.
74+5=
18.
33+7=
9.
83+9=
19.
30+5=
10.
80+4=
20.
60+5=
twinkl.co.uk
Page 2 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1.
48+3=
11.
40+7=
2.
19+9=
12.
54+2=
3.
29+6=
13.
26+5=
4.
60+1=
14.
56+2=
5.
45+2=
15.
46+7=
6.
46+5=
16.
36+2=
7.
19+3=
17.
87+4=
8.
84+8=
18.
19+1=
9.
32+7=
19.
88+4=
10.
43+2=
20.
61+5=
twinkl.co.uk
Page 3 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1
18 + 7 =
1 mark
2
84 + 4 =
1 mark
Total for this page
Page 4 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
3
16 + 4 =
1 mark
4
82 + 7 =
1 mark
Total for this page
Page 5 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
5
45 + 8 =
1 mark
6
43 + 9 =
1 mark
Total for this page
Total Page 6 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones Answers Page 1 1.
49+2=
51
11.
82+1=
83
2.
20+9=
29
12.
16+8=
24
3.
15+4=
19
13.
18+1=
19
4.
53+9=
62
14.
51+3=
54
5.
15+6=
21
15.
21+8=
29
6.
52+2=
54
16.
65+3=
68
7.
55+9=
64
17.
18+7=
25
8.
16+5=
21
18.
52+1=
53
9.
68+7=
75
19.
47+4=
51
10.
21+6=
27
20.
34+5=
39
1.
20+3=
23
11.
78+7=
85
2.
31+6=
37
12.
27+4=
31
3.
48+7=
55
13.
14+3=
17
4.
38+6=
44
14.
90+1=
91
5.
46+5=
51
15.
32+2=
34
6.
19+7=
26
16.
18+7=
25
7.
35+3=
38
17.
47+7=
54
8.
74+5=
79
18.
33+7=
40
9.
83+9=
92
19.
30+5=
35
10.
80+4=
84
20.
60+5=
65
Page 2
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Page 7 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones Answers Page 3 1.
48+3=
51
11.
40+7=
47
2.
19+9=
28
12.
54+2=
56
3.
29+6=
35
13.
26+5=
31
4.
60+1=
61
14.
56+2=
58
5.
45+2=
47
15.
46+7=
53
6.
46+5=
51
16.
36+2=
38
7.
19+3=
22
17.
87+4=
91
8.
84+8=
92
18.
19+1=
20
9.
32+7=
39
19.
88+4=
92
10.
43+2=
45
20.
61+5=
66
Page 4 - 6 1.
18+7=
25
2.
84+4=
88
3.
16+4=
20
4.
82+7=
89
5.
45+8=
53
6.
43+9=
52
twinkl.co.uk
Page 8 of 8
Adding 2-Digit Numbers and Ones 1.
49+2=
11.
82+1=
2.
20+9=
12.
16+8=
3.
15+4=
13.
18+1=
4.
53+9=
14.
51+3=
5.
15+6=
15.
21+8=
6.
52+2=
16.
65+3=
7.
55+9=
17.
18+7=
8.
16+5=
18.
52+1=
9.
68+7=
19.
47+4=
10.
21+6=
20.
34+5=
twinkl.co.uk
Page 1 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1.
20+3=
11.
78+7=
2.
31+6=
12.
27+4=
3.
48+7=
13.
14+3=
4.
38+6=
14.
90+1=
5.
46+5=
15.
32+2=
6.
19+7=
16.
18+7=
7.
35+3=
17.
47+7=
8.
74+5=
18.
33+7=
9.
83+9=
19.
30+5=
10.
80+4=
20.
60+5=
twinkl.co.uk
Page 2 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1.
48+3=
11.
40+7=
2.
19+9=
12.
54+2=
3.
29+6=
13.
26+5=
4.
60+1=
14.
56+2=
5.
45+2=
15.
46+7=
6.
46+5=
16.
36+2=
7.
19+3=
17.
87+4=
8.
84+8=
18.
19+1=
9.
32+7=
19.
88+4=
10.
43+2=
20.
61+5=
twinkl.co.uk
Page 3 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones 1
18 + 7 =
1 mark
2
84 + 4 =
1 mark
Total for this page
Page 4 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
3
16 + 4 =
1 mark
4
82 + 7 =
1 mark
Total for this page
Page 5 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
5
45 + 8 =
1 mark
6
43 + 9 =
1 mark
Total for this page
Total Page 6 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones Answers Page 1 1.
49+2=
51
11.
82+1=
83
2.
20+9=
29
12.
16+8=
24
3.
15+4=
19
13.
18+1=
19
4.
53+9=
62
14.
51+3=
54
5.
15+6=
21
15.
21+8=
29
6.
52+2=
54
16.
65+3=
68
7.
55+9=
64
17.
18+7=
25
8.
16+5=
21
18.
52+1=
53
9.
68+7=
75
19.
47+4=
51
10.
21+6=
27
20.
34+5=
39
1.
20+3=
23
11.
78+7=
85
2.
31+6=
37
12.
27+4=
31
3.
48+7=
55
13.
14+3=
17
4.
38+6=
44
14.
90+1=
91
5.
46+5=
51
15.
32+2=
34
6.
19+7=
26
16.
18+7=
25
7.
35+3=
38
17.
47+7=
54
8.
74+5=
79
18.
33+7=
40
9.
83+9=
92
19.
30+5=
35
10.
80+4=
84
20.
60+5=
65
Page 2
twinkl.co.uk
Page 7 of 8
Key Stage 1 Arithmetic Content Practice Activity Sheets
Adding 2-Digit Numbers and Ones Answers Page 3 1.
48+3=
51
11.
40+7=
47
2.
19+9=
28
12.
54+2=
56
3.
29+6=
35
13.
26+5=
31
4.
60+1=
61
14.
56+2=
58
5.
45+2=
47
15.
46+7=
53
6.
46+5=
51
16.
36+2=
38
7.
19+3=
22
17.
87+4=
91
8.
84+8=
92
18.
19+1=
20
9.
32+7=
39
19.
88+4=
92
10.
43+2=
45
20.
61+5=
66
Page 4 - 6 1.
18+7=
25
2.
84+4=
88
3.
16+4=
20
4.
82+7=
89
5.
45+8=
53
6.
43+9=
52
twinkl.co.uk
Page 8 of 8
