Ten or hundred more or less Practice

What you’ll practice

Track which place changes when you add or subtract ten or one hundred. Check the whole number when a place crosses a boundary.

Where this helps

Making tens and hundreds changes mentally.

Before you start

Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.

Grades and courses that include this topic

Related practice

• Addition within 10
• Subtraction within 10
• Complements to 10
• Tens and ones