Classroom tools
Number line
Tap a number to choose where to start.
Tip: tap a number to start, then tap where to jump to. The left and right arrow keys jump back or on by one step. Choose Hide numbers and tap a number to turn it into a question mark.
About this number line
This free interactive number line helps children see addition and subtraction as jumps. Start at 0 to 10 and stretch it up to 100 steps, count in anything from 0.1s to 100s, use negative numbers, and add jumps like +3 or −2 that build the number sentence for you. Hide numbers to make missing number questions.