1st Grade Number Line Worksheets — Add & Subtract to 20
Free printable first-grade number line worksheets. Children draw jumps on a 0–20 number line to add by counting on or subtract by counting back. Answer key included, fresh problems every time.
Aligned to CCSS 1.OA.5 · Relate counting to addition & subtraction
Number Line Addition
Aligned to CCSS 1.OA.5
Name: ___________________________ Date: _____________
Start at the first number and jump forward to add.
More 1st Grade Worksheets
FAQ
How does a number line help first graders add and subtract?
A number line turns addition into hops forward and subtraction into hops back. To solve 7 + 5, a child starts at 7 and counts on 5 jumps to land on 12. This “counting on” strategy is a first-grade standard (CCSS 1.OA.5) and builds the number sense behind mental math.
What range do these number lines use?
Every worksheet uses a 0–20 number line, matching the first-grade focus on adding and subtracting within 20. Each problem keeps the start and the answer on the line so children can model the whole jump.
How do students use the worksheet?
Each problem gives a number sentence and a blank 0–20 number line. The child draws curved jumps — forward for addition, back for subtraction — counts where they land, and writes the answer. The built-in answer key lets you check quickly.
Are these number line worksheets free?
Yes — 100% free, no signup, with an answer key and a fresh randomized set every time you click Generate New.