Add 2-Digit Numbers to 100 (No Regrouping)
⚡️ Blast through the worksheet! Now that you know how to stack numbers properly, it's time for speed training.
Do this: Read the concept below, then try the quiz or activity.
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.
🎯 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: ___