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CCSS 1.NBT.B.2.A Worksheets

Grade 1 ยท Number & Operations in Base Ten

Understand that 10 can be thought of as one bundle of ten ones, called a ten.

Below are free printable worksheets that support 1.NBT.B.2.A. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Understand that 10 can be thought of as one bundle of ten ones, called a ten.

How to teach it

Show pairs that make a target (all the ways to make 10) with counters split into two parts, then record as facts. Learn bonds to 10 by heart.

Worked example
Count the tens rods and the ones blocks. What number do they show?
Answer: 81
Why: 8 tens = 80, 80 + 1 = 81

Generated and checked in code, so it is correct.

Watch out for

Treating each fact as separate rather than using the commutative link (3 + 7 and 7 + 3).

Tens and Ones worksheets

All tens and ones worksheets โ†’

Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Make a worksheet for 1.NBT.B.2.A
More Grade 1 standards: 1.OA.A.1 ยท 1.OA.B.3 ยท 1.OA.B.4 ยท 1.OA.C.6 ยท 1.OA.D.8 ยท 1.NBT.A.1 ยท 1.NBT.B.2 ยท 1.NBT.B.2.B
โ† Browse all Common Core math standards