Grade 1 Addition Doubles Plus One — Set 66

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easy Set 66
7
+2
10
+7
3
+10
4
+15
9
+10
4
+1
10
+5
1
+10
3
+5
10
+1
4
+5
1
+13
10
+1
10
+5
3
+13
1
+1
4
+15
10
+7
10
+9
6
+11
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