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Solve the equation:
9 + y = 13
y = 4

In this equation, what is the variable?
x + 5 = 12
X

Which property is this?
72 + 18 = 18 + 72
Commutative

Which property is this?
5 + (2 + 1) = (5 + 2) + 1
Associative

An _____________is a number sentence stating that two amounts are equal
equation

The______________ property of addition states that the numbers can be added in any order and the sum will be the same.
Commutative

The ___________ property of addition states that the way addends are grouped together does not change the sum.
Associative

A ______________ is a letter or symbol that represents any number you don't know.
variable

The subtraction of numbers is called a ______?
Difference

The addition of numbers is called a ______?
Sum

What is the value of the digit 5 in 5,394,332?
5,000,000

What is the value of the digit 7 in 478,394?
70,000


Round the number to the nearest thousand?
9,895
10,000

Round the number to the nearest thousand:
5,339
5,000

Order these numbers from greatest to least:
45,387 48,339 47,110
48,339 47,110 45,387

What is the place value of the underlined digit?
78,530
Tens

What is the place value of the underlined digit?
56,223
Ones

What is the place value of the underlined digit?
3,270
Hundreds

What is the place value of the underlined digit?
4,389
Thousands


Word Form
three hundred forty thousand, five hundred fortyeight

Expanded form
300,000 + 40,000 + 500 + 40 + 8

