Write the Equation: Subtracting Within 100 on an Open Number Line

Practice subtraction on a number line with this engaging second-grade math worksheet! Students will sharpen their two-digit subtraction skills by writing equations to match the open number line models. Each problem presents a subtraction equation illustrated on an open number line. Learners will need to identify the two-digit minuend, subtrahend, and the resulting difference to complete each equation. Starting with straightforward subtraction, this worksheet then progresses to problems requiring regrouping.

Use this activity to help students improve their understanding of subtraction within 100, recognize number patterns when subtracting tens and ones, and build their overall subtraction fluency. For more practice, check out Open Number Line Subtraction Within 100: Write the Equation #1.