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➗ Dividing by 10 and 100

Divide whole numbers by 10 and 100 by sliding the digits right — 40 ÷ 10 = 4, 300 ÷ 100 = 3.

3
lessons
~15 min
to learn
🔢 Math
subject
Ages 6–12
level
Start the course →

What you’ll learn

  1. Ten Times SmallerDivide whole numbers by 10 and understand it makes them ten times smaller.Dividing by 10 makes a number ten times smaller, sharing it into 10 equal groups. So 40 ÷ 10 = 4 and 70 ÷ 10 = 7. Looking at how a number is built from hundreds, tens, and ones helps you see the change.
  2. Digits Move RightDivide by 10 and 100 by shifting digits one or two places to the right.Dividing by 10 shifts every digit one place to the right, and dividing by 100 shifts them two places. So 600 ÷ 10 = 60 and 600 ÷ 100 = 6. The pattern works for any whole number.
  3. Practice DividingPractice dividing whole numbers by 10 and 100 fluently.With practice, dividing by 10 and 100 becomes quick: 80 ÷ 10 = 8, 300 ÷ 100 = 3, 450 ÷ 10 = 45. Remember, dividing by 10 shifts digits one place right and dividing by 100 shifts them two.

Questions this course answers

When you divide a number by 10, the number gets…

Dividing by 10 makes a number ten times smaller.

Dividing a number by 100 makes it…

Dividing by 100 makes a number one hundred times smaller.

Grounded in trusted sources

  • Khan Academy Kids
  • PBS Kids — early math
  • Math is Fun
  • Britannica Kids

Every Wunder lesson is built from real, reputable sources — never invented.

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