Check my progress

This Property of Addition states that the order in which addends are added does not change the sum.

• Associative

• Commutative

• Identity

This Property of Addition states that the way addends are grouped does not change the sum.

• Associative

• Identity

• Commutative

What is the place value of 7 in the number 6,784?

• Tens

• Thousands

• Hundreds

• Ones

What is 687 rounded to the nearest tens?

What is the pattern?

573; 673; 773; 873,

What is the value of the number 8?

786

This shows which numbers you need to add first.

• Identity

• Parentheses

• Mental Math

• Commutative

This form is the usual way of writing numbers that only shows the digits.

• Standard Form

• Expanded Form

• Word Form