Word Problems with Both Addends Unknown - Up to 20
🤯 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!
Do this: Read the concept below, then try the quiz or activity.
Concept
Sometimes in math, there isn't just one right answer. There can be many!
🎯 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 ___