A chart with about a third of the numbers missing, a chart where only the first number of each row is given, or a full chart for skip counting by 2s, 5s or 10s.

1 to 100 or 1 to 120?

It depends on the province. Ontario’s Grade 1 works with numbers to 50 and Grade 2 to 200; in BC, Grade 1 goes to 20 and Grade 2 to 100. The 1 to 120 chart suits children ready to count past 100.

Are answer keys included?

Yes, and every version of a missing-numbers chart has different blanks.

Hundreds Chart Worksheets: Missing Numbers, Fill-In and Skip Counting

Patterns in the hundreds chart

Down a column every number grows by ten; along a row, by one. Filling in missing numbers makes children use those patterns instead of counting from 1 every time.

More counting

Try skip counting and number lines.

Provincial curriculum links

BC Grade 1Investigating number patterns, such as skip-counting on a hundred chart, and predicting missing elements.
BC Grade 2Number concepts to 100, using an open number line, a hundred chart and ten frames.
ON Grade 1–2Numbers up to 50 in Grade 1 and up to 200 in Grade 2.
BC Grade 3Hundred chart patterns support early multiplication and division.

In both provinces the full chart shows up before students work with every number on it. BC’s Grade 1 uses a hundred chart to spot patterns while number work stays within 20, and Grade 2 extends to 100. Ontario works up to 50 in Grade 1 and up to 200 in Grade 2, so the 1 to 120 chart fits Ontario’s Grade 2 better than its Grade 1.

In Grade 1, a missing-numbers chart limited to the first five rows is a gentle start: cover the bottom half before photocopying.

Summarized in our own words from the BC Mathematics curriculum (Grades 1–3) and Ontario’s overview of The Ontario Curriculum, Grades 1–8: Mathematics (2020).