Five pages of the same activity, each with eight new numbers from 10 to 90. The number is printed in the gray box in the middle of each row; students write 10 less and 1 less to its left, and 1 more and 10 more to its right. Some numbers end in 0, so 1 less crosses back over a ten (1 less than 70 is 69). No number printed on a page is the answer to another row on that page. The answer keys follow the five worksheets. To make more pages like these, or with hundreds chart pieces, arrow paths, sentences or base-ten blocks, open the 10 More and 10 Less worksheet maker.
This worksheet supports the following Common Core State Standards for Mathematics:
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Finding the numbers that are 1 less, 1 more, 10 less and 10 more than a number up to 100. Students fill in a row of boxes around each number without counting by ones.
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