Add 2-Digit Numbers to 100 (No Regrouping)
ā”ļø Blast through the worksheet! Now that you know how to stack numbers properly, it's time for speed training.
Concept
You possess all the strategies to solve these quickly! You know how to stack, you know your single-digit facts, and you know you must ALWAYS start on the right side. šÆ **The Vertical Review Checklist:** 1. **Sign Check:** Is it a plus (+) so you know to make it bigger? 2. **Stack Check:** Are the numbers lined up on the right side? (Especially if a problem is 84 + 3. The 3 MUST be stacked under the 4, not the 8!). 3. **Right side first:** Add the Ones down. 4. **Left side next:** Add the Tens down. 5. **Finished!**
Try it
Lightning Round! Stack and Solve! **Instructions:** Follow the rules and add the columns. **Round 1:** 4 2 + 4 6 --------- * Answer: ___ **Round 2:** 7 1 + 1 8 --------- * Answer: ___ **Round 3:** 3 5 + 5 3 --------- * Answer: ___ **Round 4 (The tricky one!):** 9 2 + 4 --------- * (Notice the 4 is in the Ones place! There are no tens!) * Answer: ___