Add Whole Tens Within 100

Build strong place value understanding with addition of whole tens within 100! This interactive drill helps students master problems like:

30 + 50 = 80

All addends are multiples of 10 (10, 20, 30, …, 90), and sums stay within 100. Perfect for reinforcing that “3 tens + 5 tens = 8 tens” — a key concept in Grade 2 Common Core standard 2.NBT.B.5.

💡 Tip: Just add the tens digits, then add a zero!