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WorksheetsTwo-Digit Addition Challenge
Total questions: 171
Worksheet time: 3hrs 6mins
5 + 3 =
7
8
9
10
What is 10 more than 45?
55
65
35
50
7 + 6 =
12
13
14
15
If you have 8 apples and you give away 3, how many apples do you have left?
5
6
4
3
What is 100 less than 450?
350
550
400
300
9 + 8 =
16
17
18
19
There are 12 birds on a tree. 5 fly away. How many birds are left?
6
7
8
9
Explain why 23+17=40 by using place value.
20 + 10 = 30 and 3 + 7 = 10, so 30 + 10 = 40
20 + 20 = 40
23 + 17 = 50
23 + 17 = 30
Round 345 to the nearest ten.
340
350
300
360
Add the following: 34 + 29
53
63
64
73
What is the sum of 7 and 5?
11
12
13
14
If you have 15 candies and you eat 7, how many candies do you have left?
6
7
8
9
Add the following: 56 + 38
84
94
96
98
Explain why 45−23=22 by using place value.
40 - 20 = 20 and 5 - 3 = 2, so 20 + 2 = 22
40 - 20 = 10
45 - 23 = 30
45 - 23 = 25
Add the following: 123 + 456
579
589
599
609
What is the sum of 23+15 ?
37
38
39
40
What is 47+26 ?
72
73
74
75
What is 58+19 ?
76
77
78
79
What is 34+29 ?
62
63
64
65
Add 66+14 .
79
80
81
82
What is the sum of 52+18 ?
69
70
71
72
Add 39+27 .
65
66
67
68
What is 45+32 ?
76
77
78
79
Add the following numbers: 23, 15, 42, and 10.
80
90
100
110
What is the sum of 34, 22, 11, and 13?
70
80
90
100
Calculate the total of 45, 25, 30, and 20.
110
120
130
140
Find the sum of 12, 28, 19, and 21.
70
80
90
100
Add 50, 15, 25, and 10.
90
100
110
120
What is the total of 33, 17, 29, and 21?
90
100
110
120
Calculate the sum of 14, 36, 18, and 22.
80
90
100
110
Find the sum of 25, 35, 15, and 25.
90
100
110
120
Add the numbers 22, 18, 27, and 33.
90
100
110
120
What is the sum of 40, 20, 30, and 10?
90
100
110
120
Calculate the total of 19, 21, 25, and 35.
90
100
110
120
Find the sum of 30, 20, 25, and 25.
90
100
110
120
Add 28, 32, 15, and 25.
90
100
110
120
What is the total of 24, 26, 20, and 30?
90
100
110
120
Calculate the sum of 29, 21, 19, and 31.
90
100
110
120
Add: 26 + 14 = ?
40
30
34
36
How many tens and ones are in 46 + 26?
6 tens 6 ones
7 tens 2 ones
7 tens 5 ones
6 tens 1 ones
Add: 48 + 35 = ?
72
83
75
85
Add: 27 + 34 = ?
64
51
57
61
40 + 30 + 9 = 79
40 + 3 + 9 = 52
4 + 9 + 3 + 0 = 16
40 + 30 + 9 = 89
758
923
134
2341
66+10
70
67
77
76
What is the sum of 34+57 ?
81
91
101
111
Calculate 48+26 .
64
74
84
94
Find the result of 29+35 .
54
64
74
84
What is 67+18 ?
75
85
95
105
Add 52+39 .
81
91
101
111
What is the sum of 23+47 ?
60
70
80
90
Calculate 56+29 .
75
85
95
105
Find the result of 41+58 .
89
99
109
119
What is the sum of 23+45 ?
58
68
78
88
What is the sum of 34+12 ?
46
56
44
48
What is the sum of 56+23 ?
69
79
89
76
What is the sum of 41+36 ?
67
77
87
57
What is the sum of 52+14 ?
66
76
64
62
What is the sum of 29+50 ?
79
69
89
99
What is the sum of 47+21 ?
58
68
78
88
What is the sum of 38+11 ?
49
59
48
50
What is the sum of 62+25 ?
77
87
67
97
What is the sum of 33+44 ?
67
77
87
97
What is 15+12 ?
27
25
30
28
Add the numbers: 23+34
57
56
58
55
Solve: 45+29
74
73
75
72
What is 67+18 ?
85
84
86
83
Add the numbers: 14+27+19
60
61
59
62
Solve: 38+47+15
100
99
101
102
What is 56+34+12 ?
102
101
100
103
Add the numbers: 25+36+29
90
89
91
88
Solve: 45−28
22
17
21
7
47-25
32
1517
22
0
43-11
54
1143
4311
32
32-14
18
24
26
13
34-14
21
23
14
20
23-12
11
14
16
10
32-19
23
13
18
10
45-6
42
23
18
39
32-14
13
18
9
12
53-15
22
38
29
40
45-16
29
21
32
33
65-22
55
45
23
43
51-12=
39
63
31
23-16=?
7
9
11
8
34-13
31
27
21
24
23 + 15 =
38
37
36
39
56+14=
60
70
68
72
37+28=
65
55
75
66
64+19=
83
73
84
74
53+29=
82
81
80
79
45+32=
77
67
87
76
22+18=
40
39
41
38
31+47=
78
77
79
76
48+27=
75
76
77
74
34+16=
50
49
51
48
29+33=
62
61
63
60
25+47=
72
71
73
70
39+26=
65
64
66
63
52+18=
70
69
71
68
44+23=
67
66
68
65
58+17=
75
74
76
73
46+35=
81
80
82
79
42+36=
78
77
76
79
33+29=
62
61
63
60
57+22=
79
78
77
80
What is the difference?
5
10
3
4
Q. What is the difference?
66
46
36
56
Q. What is the difference?
19
9
29
10
What equation does this base ten model represent?
33 + 12 = 45
44 - 21 = 45
45 - 12 = 45
45 - 12 = 33
Look at the base ten model to find the solution. What is 83 - 31 = ?
52
83
123
31
47
46
110
55
43
83
17
13
111
19
29
121
F
G
H
J
82
83
72
13
4
14
0
1
5
20
21
11
11
22
21
12
13
11
54
55
45
48
49
38
19
20
10
60
53
63
18
17
28
62
58
57
56
65
55
78-47=
41
31
35
45
57
-38
29
19
18
27
78-37=
41
42
31
51
92-43=
48
59
58
49
What equation does this base ten model represent?
33 + 12 = 45
44 - 21 = 45
45 - 12 = 45
45 - 12 = 33
What is the difference?
66
46
36
56
92-65=
26
28
17
27
Look at the base ten model to find the solution. What is 83 - 31 = ?
52
83
123
31
80
- 63
17
16
15
12
What is the difference?
18
19
20
29
17 - 10 =
27
7
6
16
1 ten
2 tens
3 tens
9 tens
90 - 70 =
30
10
40
20
40
20
60
80
71 - 40 =
21
31
41
51
10 less than 62 is
72
32
42
52
20
30
40
100
90 - 10 =
70
100
80
60
54
84
74
44
37
57
67
97
56 - 28 =
84
38
32
28
78-47=
41
31
35
45
92-43=
48
59
58
49
27-15=
13
14
12
22
44-11=
33
34
23
43
92-65=
26
28
17
27
51-24=
28
27
37
26
35-21=
15
11
35
14
77-38=
49
39
38
29
53-27=
27
28
26
36
78-37=
41
42
31
51
