Word Problems: Add THREE Big Numbers
šļø Climb the ultimate mountain! What happens when the story requires you to stack THREE huge numbers together?
Concept
A regular addition story has two parts. "Bob bought 2 things." But sometimes, Bob goes crazy and buys 3 things! šÆ **The Tower Strategy Review:** **Story:** "At the grocery store, Mom bought items for $24, a cake for $15, and decorations for $36. Total cost?" 1. **Stack all three perfectly!** 2 4 1 5 + 3 6 -------- 2. **Add down the Ones:** 4 + 5 = 9. 9 + 6 = 15! (Write 5, carry the 1). 3. **Add down the Tens:** 1 (carried) + 2 = 3. 3 + 1 = 4. 4 + 3 = 7. 4. **Final Answer:** $75. Just take it slow and don't lose track of your carried number!
Try it
Stack the tower! **Instructions:** Find the three numbers in the story. Stack them neatly on scratch paper and solve! **Mystery 1:** The school raised money for charity. The first grade raised $42. The second grade raised $35. The third grade raised $48. How much did they all raise together? * Stacked: 42 + 35 + 48 * Answer: ___ dollars. **Mystery 2:** You are building a massive LEGO castle. You use 56 gray bricks, 24 black bricks, and 19 red bricks. How many totally bricks did you use? * Stacked: 56 + 24 + 19 * Answer: ___ bricks. **Mystery 3:** A frog caught 12 flies on Monday, 38 flies on Tuesday, and 25 flies on Wednesday. How many bugs did he eat in all? * Answer: ___ flies.