Break apart tens and ones
2nd Grade Math practice: Solve mentally: 34 + 25. Part of compare and estimate (Compare and Estimate).
~10 min
Add tens to tens and ones to ones.
Tens digit tells tens
42
4 tens
2 ones
In a 2-digit number, the tens digit tells how many tens. It is the first digit.
💡 Look at the left digit for tens.