Word Problems with Both Addends Unknown - Up to 20
š¤Æ The Ultimate Puzzle! What happens when you KNOW the total, but you don't know EITHER of the parts? Let's find all the possibilities!
Concept
Sometimes in math, there isn't just one right answer. There can be many! šÆ **The "Any Combo" Puzzle:** **Story:** "You have a vase that holds exactly 10 flowers. You can fill it with red roses and pink tulips. How many of each could you use?" * **Total:** 10 flowers. * **Red Roses:** ??? * **Pink Tulips:** ??? **Equation:** ??? + ??? = 10. You get to invent the answers! You just need to find combinations that equal 10. * You could use 5 reds and 5 pinks. (5 + 5 = 10) * You could use 9 reds and 1 pink. (9 + 1 = 10) * You could use 3 reds and 7 pinks. (3 + 7 = 10) All of these answers are correct!
Try it
Invent the combinations! **Instructions:** Find three different ways to solve the problem so they equal the right total. **Problem 1:** A box holds 12 donuts. You can have chocolate donuts or glazed donuts. What are 3 different combinations you could get? * 1) ___ chocolate + ___ glazed = 12 * 2) ___ chocolate + ___ glazed = 12 * 3) ___ chocolate + ___ glazed = 12 **Problem 2:** You bring 15 snacks for the class. You bring apples and bananas. What are 2 different ways you could do this? * 1) ___ apples + ___ bananas = 15 * 2) ___ apples + ___ bananas = 15 **Problem 3:** You roll two dice and get a total of 7. What numbers could be on the dice? * ___ and ___