Numbers to 1000
Lessons in this chapter
About Numbers to 1000
Magic with Numbers adds the hundreds place, which is the moment place value stops being a two-column trick and becomes a system that keeps going.
Count, Read and Write Numbers up to 199 and then up to 1000 extend the range in two steps. The first hundred is the hard one, because the naming changes, and once a child is fluent through 199 the rest repeats the same pattern a further eight times.
FInd After, Before and Between in 3-Digit Numbers and Identify the Place Value, Place Name and Face Value of Digits in 3-Digit Numbers carry the 1st grade ideas into the new column. In 472 the 4 is in the hundreds place with a place value of 400, and that reading is what the next chapters all depend on.
Express 2-digit Numbers in Expanded form and Standard form and Compare 2-digit numbers consolidate before building higher. Comparing by place, hundreds first, then tens, then ones, is the rule that keeps working for every number a child will ever meet.
Every lesson in this chapter opens as a worksheet you work through in the page. Count, Read and Write Numbers up to 1000, Identify the Place Value, Place Name and Face Value of Digits in 3-Digit Numbers and Compare 2-digit numbers each give a set of place value worksheets that are marked as your child answers them. All six are free to try, with no login needed for your first 3.
Frequently asked questions
Counting, reading and writing numbers first to 199 and then to 1000, finding what comes after, before and between in 3-digit numbers, naming the place value, place name and face value of each digit, writing numbers in expanded and standard form, and comparing them by place. The chapter sits in the Common Core domain Number and Operations in Base Ten (2.NBT).
How to count, read and write them, identify the place name, place value and face value of each digit, write them in expanded form, and compare and order them.
Because the naming pattern changes at one hundred and then simply repeats. A child fluent through 199 has already met everything new; the rest is the same pattern eight more times.
Four hundred. Its face value is four, its place name is hundreds, and its place value is 400. Keeping those three apart is what the lesson is for.
By place, left to right: compare hundreds first, and only move to tens if the hundreds match. Guessing from how long a number looks fails as soon as both have three digits.
472 written as 400 + 70 + 2. It makes the structure visible, which is what makes regrouping across three columns understandable.