Step 3 / 4
With carrying
★★★Not the suggested orderLoading…
Two-digit addition · Numbers & Operations
Add two-digit numbers, without and with carrying, then three numbers.
This is step 3 of unit 1, “Two-digit addition”, in Stage 3: Two-digit sums and times tables (ages 9). 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.