Hundred Chart: Printable 1 to 100 Chart with Skip Counting and Primes
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Highlight skip counting patterns or primes on a hundred chart, or print a blank one.
Counting by 3 gives 33 numbers from 1 to 100: 3, 6, 9, 12, 15, 18, 21, 24, ….
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |
| 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 |
| 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |
| 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |
| 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |
| 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 |
| 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |
Show the steps
- Multiples of 3 are 3, 6, 9, … Each is the previous one plus 3.
Estimates for planning and learning, not financial, tax, legal or medical advice. Check figures with your lender, tax preparer or doctor before you act.
About this calculator
A hundred chart is a 10 × 10 grid of the numbers 1 to 100. It helps children count, skip count, add and subtract tens, and see number patterns. Older students use it to find multiples and prime numbers.
Choose a number to skip count by, and its multiples light up. Switch to primes to see all 25 primes up to 100. Hide the numbers for a practice sheet.
How to use it
- Choose the number to skip count by, such as 3 or 5.
- Pick whether the chart starts at 1 or at 0.
- Optional: highlight primes, or hide the numbers, then print.
Patterns on a hundred chart
- Multiples of 10 fill the last column.
- Multiples of 5 end in 5 or 0 and make two columns.
- Multiples of 9 form a diagonal line.
- Moving down a row adds 10, and moving across adds 1.
Prime numbers up to 100
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97. There are 25 of them.
Sources
Quick check: test yourself
Skip counting by 9 on a hundred chart, what comes after 18?
Correct answer: 27. Add 9 each time: 18 + 9 = 27.
How many prime numbers are there from 1 to 100?
Correct answer: 25. There are 25 primes up to 100.
Which number on a hundred chart is neither prime nor composite?
Correct answer: 1. 1 has only one factor, so it is neither prime nor composite.
Pick an answer for each question.
Common questions
What is a hundred chart used for?
Counting, skip counting, adding and subtracting tens, and finding number patterns.
How many primes are there up to 100?
There are 25 prime numbers up to 100.
Can I print a blank hundred chart?
Yes. Tick Hide numbers and use Print or save as PDF.
Why is 1 not prime?
A prime number has exactly two factors. 1 has only one.
What is skip counting?
Counting by a number other than 1, like 5, 10, 15, 20.
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