Place value to 1000 and skip-counting (grade 2) · lesson

Hundreds, tens, and ones

💡 Each digit's place tells what it is worth.

235 is 2 hundreds, 3 tens, and 5 ones.

10 tens make 1 hundred. In 762, the 6 is worth 60.

🧠 How to think about it

Point to the digit. Is it in the hundreds, tens, or ones place? Then say what it is worth.

🏡 Try it at home

Use a dollar, dimes, and pennies to show 1 hundred, tens, and ones in cents.

💡 Skip-counting by 5s, 10s, or 100s adds the same amount each time.

By 5s: 15, 20, 25, 30. By 10s: 970, 980, 990, 1000.

By 100s: 300, 400, 500, 600.

🧠 How to think about it

Find which digit changes. By 10s, the tens go up. By 100s, the hundreds go up.

🏡 Try it at home

Count nickels by 5s. Count dimes by 10s.

💡 A number can be written with digits, with words, or in expanded form.

528 in words is five hundred twenty-eight.

In expanded form it is 500 + 20 + 8.

🧠 How to think about it

Three hundred four has no tens. Put a 0 there: 304, not 3004.

🏡 Try it at home

Write a house number or page number three ways: digits, words, and expanded.

💡 Compare the hundreds first. If they match, compare the tens, then the ones.

452 > 425. The hundreds match. 5 tens is more than 2 tens.

610 is greater than 601. They have the same hundreds, but 610 has 1 ten.

🧠 How to think about it

Line the numbers up. Read left to right. The first place that is different decides.

🏡 Try it at home

Compare prices on two food boxes. Which number is greater?