Fill Missing Numbers 1-100 Chart
Practice filling in missing numbers on the 100 chart! This interactive activity helps first graders understand number patterns, place value, and the structure of our number system. The hundreds chart is a powerful tool that shows how numbers are organized in rows of 10.
Practice these skills:
- Recognize patterns in the hundreds chart (rows and columns)
- Understand that moving down = +10, moving right = +1
- Identify numbers that are 10 more or 10 less than a given number
- Understand place value (tens and ones)
- Build number sense and counting fluency
How it works: Look at the hundreds chart with missing numbers. Find the pattern and drag the correct numbers into the empty spaces. You’ll get instant feedback on every answer!
Tips for success:
- Look at the row above: Numbers in the same column have the same ones digit (2, 12, 22, 32…)
- Look at the row below: The number below is always 10 more (15 → 25)
- Look left and right: Numbers next to each other differ by 1 (34, 35, 36)
Aligned with U.S. Grade 1 Math Standards (1.NBT.A.1, 1.NBT.B.2, 1.NBT.C.5).