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

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

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