Into Math Grade 2, Unit 2: Place Value Concepts
In this unit, your child explores numbers up to 1,000. They learn that each digit's place value tells how much it is worth, read and write numbers in several forms, skip-count by 5s, 10s, and 100s, and compare numbers with >, =, and <. This builds on their facts within 20 and sets up adding and subtracting two-digit numbers next.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Unit 2?
- Knowing that 10 tens make 1 hundred, and that the digits in 706 stand for 7 hundreds, 0 tens, and 6 ones. Learn more: Hundreds, tens, and ones in numbers like 706
- Counting to 1,000 and skip-counting by 5s, 10s, and 100s, including across a new hundred, like 190, 200, 210. Learn more about counting within 1,000: Counting within 1,000 · Learn more about skip-counting by 5s, 10s, and 100s
- Writing numbers to 1,000 as numerals, number names, and expanded form, such as 400 + 30 + 6. Learn more: Reading and writing numbers to 1,000
- Comparing three-digit numbers by checking the hundreds first, then the tens, then the ones, and writing >, =, or <. Learn more: Comparing three-digit numbers with >, =, and <
Sample questions to try together
These are real questions from our practice. Tap the speaker to hear one read aloud, or the light bulb for a hint, and talk about the answer together.
Question 1 of 3
How many hundreds are in 300?
- 3
- 30
- 300
How you can help
- Compare house numbers or prices on a walk or ride. Ask which is greater, 298 or 301, and how they can tell by looking at the hundreds first.
- Say a number in words while you set the table, like 'five hundred six,' and have your child write the numeral. Watch for the zero in the tens place.
- Count by 10s together starting at 170, taking turns. Slow down at 190 and 200 to talk about what happens when a new hundred starts.
Where kids can get stuck
- Comparing from the right, deciding 298 is greater than 301 because 8 ones is more than 1 one.
- Treating zero as nothing at all, writing 76 for seven hundred six.
- Writing expanded form with digits instead of values, such as 4 + 3 + 6 for 436.
Practice makes perfect
Bobby's Math Club has practice problems that adapt to your child’s level, each with a detailed explanation and an easy-to-follow video, so your child can build confidence in these skills one step at a time.
Words your child will hear
- digit
- One of the symbols 0 to 9 used to write numbers. 352 has three digits.
- place value
- What a digit is worth because of where it sits. In 352, the 5 means 50.
- hundred
- Ten tens, or 100. The 7 in 706 means 7 hundreds.
- expanded form
- A number written as the sum of its parts, like 352 = 300 + 50 + 2.
- numeral
- A number written with digits, like 352, instead of in words.
- greater than
- Bigger than. The sign > means greater than, as in 301 > 298.
- less than
- Smaller than. The sign < means less than, as in 199 < 210.
- skip-count
- To count by a number other than 1, such as 5, 10, 15, 20.
Ready to build your child’s confidence with place value to 1,000?
In Bobby's Math Club, your child practices these skills at just the right level, with a hint when they need one, a clear explanation after every question, and kid-friendly videos. Unlimited practice is free.
Join the club
Written by Robert “Bobby” Barnett
Bobby is an award-winning math teacher, the author of Meet Every Learner’s Needs, and the father of two elementary-school math learners. He uses Bobby’s Math Club with his own kids a few times every week. Learn more or contact Bobby.
Which math standards does Into Math Grade 2 Unit 2 cover?
Into Math Grade 2 Unit 2 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.
- 2.NBT.A.1: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.
- 2.NBT.A.2: Count within 1000; skip-count by 5s, 10s, and 100s.
- 2.NBT.A.3: Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
- 2.NBT.A.4: Compare two three-digit numbers.
For teachers: Unit names and order vary between editions and districts, so your school’s own materials have the exact sequence. Learn how Bobby's Math Club can help your students grow.