Printable Hundreds Chart Maker

What the printed hundreds chart looks like

The filled chart is ten rows of ten squares on one US Letter page, 1 in the top left corner and 100 in the bottom right, each number in near black in a square 18.2 mm across, so the whole grid is 182 mm wide and as tall. The grid lines are gray and the outline is heavier. There is no color and no decoration, so the chart reads the same from a black and white photocopier as from the printer.

Two charts to a page shrinks the squares to 10.8 mm, the charts stacked one above the other so the page can be cut in two for a desk or a folder, and four to a page sets them two by two at 8.7 mm. A chart that starts somewhere else is drawn the same way: the 0 to 99 version puts 0 in the corner, and the 101 to 200 chart and every hundred after it, up to 901 to 1000, carry on the count.

Patterns a hundreds chart makes visible

On a 1 to 100 chart each column holds numbers ending in the same digit, so moving down one square adds ten and moving up takes ten away, while moving right adds one. The diagonal from the top left corner runs 1, 12, 23 and on to 100, adding eleven at each step. Those moves are the reason the chart is used at all: adding 23 to 45 is two squares down and three to the right, landing on 68.

The 0 to 99 version shifts everything by one, so every number on a row shares its tens digit, 30 to 39 on the fourth row, which some teachers prefer for place value. On the 1 to 100 chart the tens digit changes at the end of each row instead, where 30 closes the third row. Shading the multiples of a number shows skip counting as a shape: the multiples of 10 fill the last column, the 5s fill two columns, the 2s make stripes in five of the ten columns, and the 9s step down and to the left, one column at a time, from 9 to 81.

Missing-number charts and their keys

A missing-number chart prints some of the numbers and leaves the rest of the squares empty. Random gaps come in three amounts, a quarter, half or three quarters of the squares, spread so that every row has its share, within one, and the first square is never left out, so the starting number is always on the sheet. Or the gaps can be the multiples of a number from 2 to 10, which turns the chart into a skip counting sheet.

Every missing-number and blank chart has its answer key on the next page: the chart with every number written in, the answers in a lighter gray than the printed ones. Up to five versions go in one download, each different and each followed by its key, and on a page of two or four random charts every chart is different and labeled, so a key can only be matched to the chart it belongs to.

Which hundreds chart to print

For a classroom wall or a desk reference, the filled 1 to 100 chart. For first grade, where the Common Core asks children to count to 120, the 120 chart, which adds two rows: 101 to 110 and 111 to 120. For children moving on to three-digit numbers, the 101 to 200 chart shows that the second hundred follows exactly the same pattern as the first.

For practice, a missing-numbers chart with a quarter of the squares empty, then half, then three quarters as the count becomes secure. The blank chart, with every square empty and nothing printed but the grid, is the last step: writing the numbers from 1 to 100 in order, ten to a row, which is the instruction printed above it.

Hundreds charts for the 100th day of school

Many kindergarten, first grade and second grade classes mark the 100th day of school by counting to 100 together, and in most US schools the day falls between late January and the middle of February, depending on when the year began and how many days off came before it. A hundreds chart is the one sheet that holds the whole count, ten rows of ten ending on 100, so the counting planned for the day can be done on one.

The 100th day set among the ready-made charts at the top of this page counts to 100 four ways in one PDF. The first chart leaves out the 10 multiples of 10, the whole last column; the second the 20 multiples of 5, the fifth and tenth columns; the third the 50 even numbers, every other column; and the fourth is the blank chart, all 100 squares to fill in order. Each chart is headed Hundreds Chart: 100th Day of School and followed by its answer key, eight pages in all, so the odd pages go to the class and the even pages are kept for checking. The steps run 10, 20, 50 and 100 numbers to write, and a class can stop at whichever chart suits it.

Two more ideas need only the filled 1 to 100 chart. Its squares are 18.2 mm across, room for a dried bean, a button or a piece of cereal, so 100 small things can be counted out one to a square, a full row for every ten. Cutting a second copy along its grid lines into five or six large pieces makes a puzzle, put back together by matching the numbers across each cut: whatever sits under 47 has to be 57.

Many classes also count the days of school on a hundreds chart from the first day, writing in one number each morning, so the last square fills on the hundredth day. The blank chart serves for that, and the maker above prints it with a title of up to 40 characters, such as the class name, on the chart and on its answer key.