Step 3 / 3
10 + □ = teen
★★★Not the suggested orderLoading…
Ten plus a number · Numbers & Operations
10 + 2 = 12. Ten plus some ones makes a teen number.
This is step 3 of unit 18, “Ten plus a number”, in Stage 1: Numbers to 20, adding and subtracting (ages 6–7). A round has 8 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.