Subject
Grade
Concept/Content
one-step equations with an unknown number, using all operations
Elaboration
- one-step equations for all operations involving an unknown number (e.g., ___ + 4 = 15, 15 – □ = 11)
- start unknown (e.g., n + 15 = 20; 20 – 15 = □)
- change unknown (e.g., 12 + n = 20)
- result unknown (e.g., 6 + 13 = __)
keywords
one-step equations