Standard Form Worksheets
Free printable standard form worksheets. Read an expanded form and write the number it makes, with an answer key.
The expanded form question in reverse: each line gives the parts and asks for the number they add up to, so 4,000 + 300 + 20 + 1 is answered 4,321. It is the harder direction, because the student has to notice which column is missing rather than being shown it.
That is worth saying plainly: given 4,000 + 300 + 2, the answer is 4,302, and the nought in the tens place is not written anywhere in the question. Students who answer 4,32 have understood the addition and missed the place value.
What this worksheet covers
- Write the number an expanded form adds up to
- Spot a missing place and hold it with a zero
Common Core standards
- 4.NBT.A.2 Read, write and compare multi-digit whole numbers, including in expanded form.
Frequently asked questions
What is standard form?
The ordinary way of writing a number - 4,321 rather than 4,000 + 300 + 20 + 1. It is the answer to an expanded form written the other way round.
Why is this harder than expanded form?
An expanded form with a missing column gives no sign that the column is missing. Turning 4,000 + 300 + 2 back into 4,302 means noticing the empty tens place and writing the zero.
Can I mix this with the other place value questions?
Yes - the Place Value Worksheets page puts all three kinds on one sheet.
What is word form?
The number written in words: four thousand, three hundred twenty-one. Standard form, expanded form and word form are the three ways elementary math writes the same number. These sheets move between the first two.