Every digit has a place
Read three-digit amounts, including empty tens and ones places.
Explore this lesson →8 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- The first digit of a three-digit number counts hundreds, the second counts tens and the last counts ones.
- A zero keeps a place even when there are no groups of that size. In 706 there are no extra tens.
- A large hundred square has the same value as ten rods or one hundred little squares.
Something to notice
Ask learners to bundle physical tens, explain zero in a numeral, read and write fresh number names, and continue a count from an unfamiliar start. Screen models and typed answers support these ideas but do not establish handwriting skill or independent explanation.
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Grade 2 · 2.NBT · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.