Whole tens
1
20 + 39 = ______
Mental addition
1
Add Whole Tens6 WS
34 + 50 = ____
2
34 + ____ = 84
Addition word problems
1
Ben had 12 marbles and lost 5. How many marbles does he have now?
Adding 2-digit numbers in columns
1
36
+ 22
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1
Solve for the missing number: 5 + ? = 10
