Step 1 / 2
Join pictures
★★★Joining means putting two groups into one.
Cloud Bridge · Learn first
Example
Put the two parts together. What is the whole?
Answer: 3
Join two parts · Numbers & Operations
Put two groups together to feel what adding means.
Joining means putting two groups into one.
This is step 1 of unit 9, “Join two parts”, in Stage 2: Numbers to 100, carrying and borrowing (ages 7–8). A round has 10 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.