Addition Drills (1s) - Math Worksheet With Answer Key

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Name:
Addition Drills (1s)
Solve each problem.
9
2
3
8
10
1
5
7
6
4
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
10
3
4
9
11
2
6
8
7
5
1
1
1
1
1
1
1
1
1
1
+
7
+
8
+
4
+
2
+
9
+
1
+
5
+
3
+
10
+
6
8
9
5
3
10
2
6
4
11
7
1
5
2
10
8
9
4
6
3
7
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
2
6
3
11
9
10
5
7
4
8
1
1
1
1
1
1
1
1
1
1
+
3
+
7
+
6
+
8
+
1
+
2
+
5
+
10
+
9
+
4
4
8
7
9
2
3
6
11
10
5
7
10
5
8
9
1
3
4
6
2
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
8
11
6
9
10
2
4
5
7
3
1
1
1
1
1
1
1
1
1
1
+
9
+
3
+
8
+
10
+
2
+
7
+
5
+
4
+
6
+
1
10
4
9
11
3
8
6
5
7
2
10
1
4
6
3
7
8
5
2
9
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
11
2
5
7
4
8
9
6
3
10
1
1
1
1
1
1
1
1
1
1
+
2
+
10
+
3
+
9
+
7
+
8
+
1
+
4
+
5
+
6
3
11
4
10
8
9
2
5
6
7
9
5
8
4
6
2
10
7
1
3
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
10
6
9
5
7
3
11
8
2
4
1
1
1
1
1
1
1
1
1
1
+
8
+
3
+
4
+
10
+
9
+
2
+
6
+
5
+
7
+
1
9
4
5
11
10
3
7
6
8
2
Math
10

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