Third Grade Number & Operations in Base Ten

Use place value for rounding, strategies for adding and subtracting within 1,000 and multiply single digits by powers of 10.  Just click on the blue links to display or print pdfs.

Practice Pages
Use place value understanding and properties of operations to perform multi-digit arithmetic - Cluster 1

Standard 3.NBT.1:  Use place value understanding to round whole numbers to the nearest 10 or 100.
Read Place Value

Answers 3.NBT.1.a

Place Value Round to 10s

Answers 3.NBT.1.b

Standard 3.NBT.2:  Fluently add and subtract within 1,000 using strategies and algorithms based on place value, properties of operations and/or the relationship between addition and subtraction.

Add to 1000

Answers 3.NBT.2.a

Add to Subtract

Answers 3.NBT.2.b
Standard 3.NBT.3:  Multiply one-digit whole numbers by multiples of 10 in the range 10-90 (e.g., 9 x 80, 5 x 60) using strategies based on place value and properties of operations.

Place Value

Answers 3.NBT.3.a

1 x 2 Multiplication

Answers 3.NBT.3.b