Chapter 1 Whole Numbers

Question 1

What is a digit?

Answer 1

A digit is a number 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 that names a place-value location.

Question 2

How do you format large digit numbers?

Answer 2

For large numbers, digits are separated by commas into groups of three called periods.

Question 3

What are some examples of periods?

Answer 3

Ones, tens, thousands, millions, billions, trillions, and so on. They are shown on a place-value chart.

Question 4

Is the number 934,871 in standard notation or expanded notation?

Answer 4

Standard notation

Question 5

Is 9 hundred thousand + 3 ten thousands + 4 thousands + 8 hundreds + 7 tens + 1 one written in standard notation or expanded notation?

Answer 5

Expanded notation

Question 6

What is a word name?

Answer 6

When we pronounce a number, it is a word name.

Question 7

Which word should NOT appear in word names for whole numbers?

Answer 7

And

Question 8

Where is the word “and” appropriate to use?

Answer 8

For decimal notation, it is appropriate to use “and” for the decimal point. For example, 317.4 is read as “three hundred seventeen AND four tenths”

Question 9

What is a whole number? What is a whole number’s purpose?

Answer 9

To answer questions such as “How many?”, “how much?”, and “how tall?”, we often use whole numbers.

The set or collection of whole numbers is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12…

The set goes on infinitely. There is no largest whole number, and the smallest whole number is 0.

Question 10

What are natural numbers?

Answer 10

Each whole number can be named using various notations. The set 1, 2, 3, 4, 5…, without 0 is the set of natural numbers.

Question 11

What is a sum?

Answer 11

The answer of an addition problem with whole numbers.

3 + 2 = SUM

Question 12

What is an addend?

Answer 12

The addend is the numbers added in an addition problem with whole numbers.

ADDEND + ADDEND = SUM

Question 13

What order do you add whole numbers?

Answer 13

First you add digits first, then the tens, then the hundreds, then the thousands, and so on. This is in columns, from right to left.

Question 14

What do parentheses tell us to do?

Answer 14

They tell us what to do first

Question 15

What are integers?

Answer 15

All whole numbers and their negative counterparts

…-4, -3, -2, -1, 0, 1, 2, 3, 4…

Question 16

What is a rational number?

Answer 16

Any number that can be written as a fraction or ratio.

Any number that can be written by dividing one integer by another.

Question 17

What is an irrational number?

Answer 17

A number that cannot be written as a simple fraction because decimals goes on forever without repeating

Question 18

What is associative property?

Answer 18

Associative property means that rearranging the grouping and parenthesis in an expression will not change the result.

Question 19

What property means you can add whole numbers in any order? For example: 2 + 3 = 3 + 2

Answer 19

Communicative law of addition

Question 20

What do both the associative and communicative laws tell us?

Answer 20

They tell us that when adding more than two numbers we can use any order and grouping we want to.

Question 21

What is additive identity?

Answer 21

Additive identity means that adding 0 to a number does not change the number. This is also called the Additive property of 0.

Question 22

What is the distance around an object?

Answer 22

Its perimeter