Step 1 / 5
10 and 20
★★★Two tens make 20: twenty.
Addition Village · Learn first
Example
How many tens are in 10?
tens
ones
1
0
Answer: 1
Numbers to 20 · Numbers & Operations
Two tens make 20. Match the same number shown as fingers, rods, tally marks and words.
Two tens make 20: twenty.
This is step 1 of unit 3, “Numbers to 20”, 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.