Exploring Algebra

Coleton is checking out the math problem.

~ Explore algebra by finding missing numbers ~

Missing Numbers in Equations

      
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Cade is solving a number sentence.

1. For  ___ + 4 = 20 to be true, each side of the number sentence must be equal.
2. Find the missing number ___ + 4 = 20
3. Build the problem and notice the size of the missing number. (Is it large or a small number?)
4. Use color cubes to find the missing number.
5. How many cubes did you need to make both sides equal?

Hint: For a number sentence to be true both sides need to be equal.

Marvin is carefully counting.

Tayen was a great example!