Two-Digit Addition using Base Ten Blocks Worksheet

Since I can't view or access images directly, I can't see the specific base ten blocks in your uploaded image. However, I can help you solve two-digit addition problems using base ten blocks if you describe what’s shown in each problem.

Base ten blocks represent numbers using:
- Longs (sticks) = 10 units each
- Units (dots or small squares) = 1 unit each

For example:
- A group of 3 longs and 4 units = 30 + 4 = 34
- A group of 2 longs and 7 units = 20 + 7 = 27

Then, to add:
- Combine the tens and ones separately
- Regroup if necessary (e.g., 10 ones = 1 ten)

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How to Solve These Problems:

Let’s say one problem shows:
- Left side: 2 longs + 5 units → 25
- Right side: 1 long + 8 units → 18
- Add: 25 + 18

Step-by-step:
1. Add tens: 20 + 10 = 30
2. Add ones: 5 + 8 = 13
3. Combine: 30 + 13 = 43
4. Regroup: 13 ones = 1 ten + 3 ones → total is 4 tens + 3 ones = 43

So, write:
25 + 18 = 43

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Please describe each problem in the image (e.g., “First row: 3 longs and 6 units plus 2 longs and 4 units”) and I’ll walk you through solving them step by step!