Step 2 / 4
One less
★★★Not the suggested orderOne less is the number before: 1 less than 15 is 14.
Addition Village · Learn first
Example
What is 1 less than 13?
Answer: 12
One more, one less · Numbers & Operations
Find one more, one less, and the number in between.
One less is the number before: 1 less than 15 is 14.
This is step 2 of unit 8, “One more, one less”, 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.