White H House of Math logo on multicolored square
Colorful House of Math logo
Log in
Mute Button
Level
Level icon1
Level icon2
Level icon3
Level icon4
Level icon5
Level icon6

The Number Line

10/10
Bold gray checkmark

What number is the arrow pointing at?

Arrow pointing at 16 on an empty 10-20 number line

Prev.

Skip

Green, mystical-looking orb with white energy streaks
Full pink heartFull pink heart