The ability to partition numbers (explode them into units, tens, hundreds etc) is essential and is typically introduced in Years 2/3 with the concept of place value. An understanding of number partitioning is vital for all subsequently taught methods of calculation.

After understanding two digit partitioning, children need to understand that three digit numbers are made up of hundreds, tens, and units components. These 3-digit number partitioning worksheets are designed to give children partitioning practice.

Example: 386 = _300_ + _80_ + _6_