Grade 1 Addition Doubles Plus One — Set 55

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easy Set 55
1
+1
10
+9
2
+5
1
+1
2
+3
8
+1
1
+1
1
+7
3
+5
3
+11
7
+11
4
+5
10
+8
1
+5
10
+8
1
+7
10
+10
4
+15
2
+15
5
+12
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