enVision Mathematics Grade 2, Topic 9: Numbers to 1000
In this unit, your child works with numbers up to 1,000. They use place value, the idea that a digit's spot tells its value, to see hundreds, tens, and ones. They skip-count, read and write numbers in different forms, and compare them with >, =, and <. It follows the counting in time and money and sets up adding within 1,000 next.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Topic 9?
- Showing three-digit numbers with blocks or drawings of hundreds, tens, and ones, and seeing that 10 tens make 1 hundred. Learn more: Hundreds, tens, and ones in numbers like 706
- Counting within 1,000 and skip-counting by 5s, 10s, and 100s, crossing new hundreds like 195, 200, 205. Learn more about counting within 1,000: Counting within 1,000 · Learn more about skip-counting by 5s, 10s, and 100s
- Writing numbers like 584 in three ways: as a numeral, in words, and in expanded form, 500 + 80 + 4. Learn more: Reading and writing numbers to 1,000
- Comparing two three-digit numbers place by place and recording it with the symbols >, =, and <. 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
- Read three-digit numbers aloud from house numbers, prices, or page numbers, and ask your child what each digit is worth and how they can tell.
- Count by 100s together on a walk or ride, then try starting at 250 or 375, and notice that the tens and ones stay the same.
- Write two numbers, like 409 and 490, and ask which is greater and how your child knows. Then swap roles and let them quiz you.
Where kids can get stuck
- Writing four hundred thirty-six as 40036 or 400306, exactly as it sounds, instead of 436.
- Believing 199 is more than 210 because 199 has bigger digits.
- Mixing up the > and < symbols, so the statement says the opposite of what they meant.
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
- place value
- The value a digit has because of its spot in a number: ones, tens, or hundreds.
- digit
- One of the symbols 0 through 9 that we use to write numbers.
- hundreds
- Groups of 100. In 706, the 7 means 7 hundreds, or 700.
- expanded form
- A number written as the sum of its parts, like 400 + 30 + 6 for 436.
- numeral
- A number written with digits, like 436.
- skip-count
- Counting by a number other than one, like 5, 10, 15, 20.
- compare
- To decide which is more, less, longer, or shorter, and by how much.
- greater than
- More than. The symbol > means greater than, as in 52 > 25.
- less than
- Fewer than. The symbol < means less than, as in 25 < 52.
Want to help your child master numbers 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.
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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 enVision Mathematics Grade 2 Topic 9 cover?
enVision Mathematics Grade 2 Topic 9 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.