Educators101

Counting Backwards to 100 Worksheets for 1st Grade

Fill in the missing number in a backwards counting sequence, starting as high as 100. 15 free printable worksheets, each with an answer key.

Save to Pinterest

Free Counting Backwards to 100 Worksheets

Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.

Counting Backwards to 100: what children learn

This stretches backwards counting to the full range up to 100 — a harder version of the same skill, since larger numbers mean more chances to lose track of place value while counting down.

Counting Backwards to 100: worked example

73, 72, __, 70, 69 71

Each number is 1 less than the number before it, so the missing number is 72 - 1 = 71.

Counting Backwards to 100: a common mistake to watch for

Kids often stumble crossing a "decade" boundary going down (like from 70 to 69) — extra practice right around those transitions helps.

Counting Backwards to 100: how to help at home or in class

Play a countdown game with a hundred chart and a small toy. Start at 100 and hop the toy back one square at a time while your child says each number. Pause on tricky spots like 80 and 79, and ask what comes next before the move. Reading the chart bottom to top shows the same pattern in reverse. Once your child can count down from any number under 100 without pausing at decade changes, work on subtraction within 20.

What is on these Counting Backwards to 100 worksheets

This set has 15 different worksheets for 1st grade, with 16 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Find the pattern and write the missing number.”

Example questions like the ones on these worksheets, with their answers:

  • 33, __, 31, 30, 2932
  • 20, 19, __, 17, 1618
  • 88, __, 86, 85, 8487
  • 19, 18, 17, __, 1516
  • 92, 91, 90, __, 8889
  • 4, 3, 2, __, 01
  • 45, 44, __, 42, 4143
  • 83, 82, 81, __, 7980

Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers