Workbook Detail
Addition 3 Addends Expert — Set 36
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}Teaching Notes
5
+1
9
+10
5
+1
1
+8
8
+10
5
+2
1
+4
3
+4
10
+1
4
+4
10
+6
3
+6
6
+10
1
+4
10
+6
3
+10
10
+7
2
+2
2
+3
10
+8
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