Number & Operations in Base Ten Worksheets
Free, printable worksheets for every Common Core Number & Operations in Base Ten standard (Kindergarten–5th Grade) — each with a free answer key. Pick a standard to see every matching worksheet.
About the Number & Operations in Base Ten domain
Number & Operations in Base Ten is a Common Core math domain that spans Kindergarten–5th Grade. It groups the related standards below; each standard targets one specific skill. Choose a standard to practise it with free, printable worksheets — every sheet comes in multiple sets so kids can repeat the skill with fresh questions.
Kindergarten
1st Grade
1.NBT.1
Count to 120, starting at any number less than 120.
1.NBT.2
Understand that the two digits of a two-digit number represent tens and ones.
1.NBT.3
Compare two two-digit numbers using >, =, and < symbols.
1.NBT.4
Add within 100, including a two-digit number and a one-digit number.
1.NBT.5
Given a two-digit number, mentally find 10 more or 10 less.
1.NBT.6
Subtract multiples of 10 in the range 10–90.
2nd Grade
2.NBT.1
Understand that the three digits of a three-digit number represent hundreds, tens, and ones.
2.NBT.2
Count within 1000 and skip-count by 5s, 10s, and 100s.
2.NBT.3
Read and write numbers to 1000 using numerals, names, and expanded form.
2.NBT.4
Compare two three-digit numbers using >, =, and < symbols.
2.NBT.5
Fluently add and subtract within 100.
2.NBT.6
Add up to four two-digit numbers.
2.NBT.7
Add and subtract within 1000 using concrete models and strategies.
2.NBT.8
Mentally add or subtract 10 or 100 to a given number 100–900.
2.NBT.9
Explain why addition and subtraction strategies work.
3rd Grade
4th Grade
4.NBT.1
Recognize that a digit in one place represents ten times the place to its right.
4.NBT.2
Read, write, and compare multi-digit whole numbers.
4.NBT.3
Use place value understanding to round multi-digit whole numbers.
4.NBT.4
Fluently add and subtract multi-digit whole numbers.
4.NBT.5
Multiply a whole number of up to four digits by a one-digit number.
4.NBT.6
Find whole-number quotients with up to four-digit dividends and one-digit divisors.
5th Grade
5.NBT.1
Recognize that a digit represents ten times what it represents to its right and 1/10 to its left.
5.NBT.2
Explain patterns when multiplying or dividing by powers of 10.
5.NBT.3
Read, write, and compare decimals to thousandths.
5.NBT.4
Use place value understanding to round decimals to any place.
5.NBT.5
Fluently multiply multi-digit whole numbers using the standard algorithm.
5.NBT.6
Find whole-number quotients with up to four-digit dividends and two-digit divisors.
5.NBT.7
Add, subtract, multiply, and divide decimals to hundredths.