Step 5 / 5
Carrying on a ten frame
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Add within 20 · Numbers & Operations
From no-carry to carrying sums, adding three numbers, and missing addends.
This is step 5 of unit 41, “Add within 20”, 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.