Writing Numbers Through Hundred Thousands
Grade 4 students learn to write numbers through the hundred thousands place in Saxon Math Intermediate 4. Numbers like 520,064 are built by identifying the thousands part (five hundred twenty), placing a comma, then writing the ones part with placeholder zeros (064 — the zero holds the hundreds place). This Chapter 4 skill extends place value knowledge to six-digit numbers, teaches students to use commas correctly as period separators, and emphasizes that missing place values must be filled with zeros rather than omitted.
Key Concepts
New Concept The three places to the left of the hundreds place are the thousands place, the ten thousands place, and the hundred thousands place.
What’s next Next, you'll practice using commas, writing numbers in expanded form, and translating between digits and words for large numbers.
Common Questions
How do you write numbers through hundred thousands?
Identify the thousands part of the number, write it as digits, add a comma, then write the three-digit ones period. If a place value is not mentioned in words, insert a zero as a placeholder. For example, five hundred twenty thousand sixty-four is written 520,064.
What is the hundred thousands place?
The hundred thousands place is the sixth digit from the right in a number, worth 100,000 per unit. For example, in 520,064, the digit 5 is in the hundred thousands place and represents 500,000.
Why do we use commas in large numbers?
Commas separate periods — groups of three digits — making large numbers easier to read. In a six-digit number like 520,064, the comma separates the thousands period (520) from the ones period (064).
What is a placeholder zero in large numbers?
A placeholder zero fills a place value that has no units. In five hundred twenty thousand sixty-four, there are no hundreds in the ones period, so a zero holds the hundreds place: 520,064 not 520,64.
What Saxon Math chapter covers writing numbers through hundred thousands?
Writing numbers through hundred thousands is taught in Saxon Math Intermediate 4, Chapter 4 (Lessons 31-40), building on earlier place value work with thousands.