These are our writing number words up to 20 worksheets for 1st grade math school. Click on the previews to go to download page.


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Worksheet by math grade levels:


Our grade 1 spelling worksheets are all about writing number words up to 100. The whole number worksheets include counting numbers up to 100 worksheets, first grade math worksheets with number patterns, odd and even numbers up to 100 worksheets, and ordinal numbers up to 20th worksheets.

We also offer comparing and ordering numbers up to 100 worksheets, place value worksheets with tens and ones, skip counting and number bonds addition worksheets, and grade 1 addition and subtraction worksheets with and without regrouping and borrowing.

Our first grade multiplication and division worksheets are with pictures and visuals and based on grouping and equal groups. These introduction to multiplying and dividing worksheets are great for first grade math students.

Mixed operation worksheets cover both addition up to 100 and subtraction within 100 and re great to boost math skills for grade 1 math students. The geometry worksheet include recognizing, drawing basic shapes and solving shape patterns and sequences.

Our grade 1 measurement worksheets include measuring length and height worksheets, reding and telling time worksheets and grade 1 mass and weight exercises, first grade money worksheets, all with numbers up to 100. Our reading time worskheets cover half and whole hours, our money worksheets are based on US dollars, Euro and Thai baht.

On this page you can also find our grade 1 graphing exercises with picture graphs and tally charts with numbers up to 20.


Our first grade math worksheets are free and printable in PDF format. Based on the Singaporean math school curriculum for grade 1 students, these 1st level math worksheets are made for students in school, tutoring or online math education.

Our grade 1 math worksheets cover topics such as: whole numbers, spelling of basic numbers up to 10 or 100 and first grade math operations, grade 1addition and subtraction, place value, skip counting, introduction to division and multiplication, first grade geometry and basic shapes, easy picture graphs, length, volume and mass measurement and beginners number patterns.

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