Counting Back to Subtract Worksheet

Counting back is the first mental strategy a young mathematician uses to take a small number away without starting over at one. When a first grader can start at 15, say “14, 13, 12,” and land on the answer, subtraction stops being a mystery and becomes a short, confident count. This counting back to subtract worksheet gives students two ways to practice that move: hopping backward along a printed number line, and counting back in their heads to finish an equation. Both build the same habit — hold the larger number, then count back one space at a time.

The page opens with two 0–20 number lines. Each one is already marked at the starting number, so a child only has to hop backward the right number of spaces and write the difference. Part B moves the same strategy off the number line: six equations within 20, each taking away one to five, so students count back mentally and record the answer. Part C closes with a story about Audrey’s hopping game, where children write the number sentence and the number she landed on. Use it as morning work, as small-group practice after a number-line mini-lesson, or as a quick check before you move on to subtraction fluency.

What’s Included

• 1 print-ready PDF worksheet
• 2 number-line problems on a marked 0–20 line
• 6 count-back subtraction equations within 20
• 1 word problem with a number sentence and an answer line
• 1 answer key

This resource helps children learn the skill in three ways. First, the number line makes subtraction visible — a child can see that taking away three means three hops to the left, so the size of the difference is something they watch happen instead of something they memorize. Second, moving from the number line in Part A to bare equations in Part B walks students from a concrete picture to a mental strategy in one page, which is exactly how counting back becomes fluent. Third, the word problem asks children to turn a story into a number sentence, so they practice deciding when subtraction is the right operation, not just how to compute it.

Teachers and parents can stretch this counting back to subtract worksheet well past the page. Tape a large number line to the floor and let children physically hop backward as a partner calls out an equation. Roll two dice, make the larger number the start and the smaller the amount to count back, and race to say the difference. Draw stepping stones on the driveway with sidewalk chalk and number them, then play Audrey’s hopping game outdoors. If your students need more repetition before they leave the number line, pair this count back to subtract math worksheet with the related resources below and keep the practice short and daily.

Related Resources

• Adding and Subtracting Within 20 Worksheet
• Subtraction Word Problem Worksheet
• Subtracting Within 5 Worksheet
• Counting By Ones Song (Have Fun Teaching)