MyMath Chapter 2 Review

The ________ Property states that for any number, zero plus that number is the number.

• Associative

• Identity

• Commutative

• Zero

The _______ property states that the order in which two numbers are added does not change the sum (answer).

• Identity

• Commutative

• Associative

• Zero

The ________ Property states that the grouping of the numbers does not change the sum (answer).

• Identity

• Associative

• Commutative

• Zero

A _______ is a symbol, usually a letter, that is used to represent an unknown number.

• minuend

• varibale

• unknown

• equation

An ________ is a sentence that contains an equal (=) sign showing that 2 expressions are equal.

• variable

• minued

• equation

• zero

Round to the nearest hundred to estimate the sum: 954+459

• 1,300

• 1,500

• 1,000

• 900

Round to the nearest thousand to estimate the sum: 2,221+4,125

• 5,000

• 4,000

• 6,000

• 2,000

73+65

• 135

• 138

• 130

• 133

52,321-16,225

• 37,906

• 37,960

• 37,095

• 36,096

500,000-372,558

• 122,442

• 124,444

• 127,442

• 121,442