Add the numbers.
No sign-up. No setup. Just practice. · Prints on A4 & Letter
Free printable number line addition worksheets for first grade. Follow or draw jumps within 20, solve each equation, and print matching answers.
Grade 1 · addition within 20. This printable activity gives children something concrete to count, color, draw, cross out, match, or explain. It provides focused practice for 1.OA.C.5–6 and a matching answer key for the exact generated set.
Number-line addition treats addition as movement to the right. Some questions show the jump; others leave the jump for the learner to draw before completing an equation within 20.
Put a dot on the starting number. Count one space for each jump, move right, and circle the landing number. The endpoint should equal the sum in the written equation.
Read the first direction together and let the child complete the physical action before writing a number. Ask, “How do you know?” after one item. That short explanation reveals whether the picture, model, and equation make sense together. Use crayons, a pencil, small counters, or a straightedge when the activity calls for them.
Select New problems to make a fresh set with new numbers or pictures. Switch between Worksheet and Answer key to preview both pages. The selected worksheet and answer key use the same set, so every answer stays aligned. Choose either page or both in the print controls, then print on US Letter or A4 paper. A browser print dialog can also save the activity as a PDF.
The worksheet is free for home practice, tutoring, and classroom use. Begin with a level the learner can complete accurately, then generate a new set for another short session. Hands-on work should support mathematical thinking, so accuracy and a clear explanation matter more than speed.
Start · jump right · add.
Generate, preview, and print the worksheet with its matching answer key.