10 questions
1st - 1st Grade
Mathematics
This Grade 1 mathematics worksheet helps students count forward by ones and tens and apply those patterns to find numbers that are one more, one less, or ten more. Across 10 multiple-choice questions, students complete sequences such as 91, 92, 93 and 22, 32, identify a correct counting-by-tens sequence, and solve one-more, one-less, and ten-more questions with numbers through 120. The worksheet is designed for early number-sense practice, guided instruction, independent work, or a quick skills check. Students must distinguish between increasing by 1 and increasing by 10, including transitions such as 90 to 100 and 119 to 120. This free printable worksheet includes a complete answer key, making it practical for Grade 1 classrooms, math centers, homework, and review.
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WorksheetsAnswer Key94
42
10, 20, 30, 40, 50
113
110
55
97
111
101
120
This Grade 1 worksheet uses 10 multiple-choice questions to practice extending counting sequences by 1 or 10 and finding 1 more, 1 less, and 10 more. Students complete sequences such as 110, 111, 112, identify the correct counting-by-tens pattern, and apply these relationships to numbers through 120.
Model the difference between adding 1 and adding 10 with a number line or hundreds chart before students begin the multiple-choice items. Ask students to explain how they know that 91 becomes 92 when counting by ones, while 22 becomes 32 when counting by tens, then use the answer choices to discuss why distractors do not follow the stated pattern.
Students may add 1 when a sequence requires 10, or add 10 when it requires 1, especially in items such as 81, 91, ___ and 117, 118, 119, ___. Watch for errors at place-value transitions, including choosing 100 instead of 110 after 90 and choosing 112 instead of 120 after 119. Students may also confuse 1 less than 98 with 1 more or 10 less.
Wayground provides this worksheet as a printable PDF and as a digital quiz, so you can choose the format that fits your Grade 1 number-sequence practice. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app.
Use the worksheet’s Advanced Settings to adjust font spacing and font size so the number sequences and multiple-choice options are easier to scan, or enable a dyslexia-friendly font. You can also translate the worksheet into another language while keeping the counting-by-ones, counting-by-tens, and one-more/one-less questions intact.
Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.