CCSS 1.NBT.A.1 Worksheets
Grade 1 · Number & Operations in Base Ten
Count to 120 starting at any number, and read and write numerals in that range.
Below are free printable worksheets that support 1.NBT.A.1. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teach this standard
Deliver a whole lesson on 1.NBT.A.1 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Count to 120 starting at any number, and read and write numerals in that range.
Count real objects out loud, touching each one once, then match the count to the written numeral. Practise counting on from a number, not always from one.
Generated and checked in code, so it is correct.
Skipping or double-counting objects (weak one-to-one correspondence), and thinking the last number said is just a label rather than the total.