Step 1 / 3
6−4 and 16−4
★★★If 6 − 4 = 2 then 16 − 4 = 12.
Addition Village · Learn first
Example
Use the first line to fill in the box.
1 − 1 = 0
11 − 1 =
Answer: 10
Teen minus a digit · Numbers & Operations
If you know 6 − 4 = 2, you know 16 − 4 = 12. Subtract the ones and keep the ten.
If 6 − 4 = 2 then 16 − 4 = 12.
This is step 1 of unit 25, “Teen minus a digit”, 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.