Chapter 1: Place Value, Addition & Subtraction to One Million

In Chapter 1 students will:

• Model the 10-1 relationship among place-value positions in the base-ten number system
• Read and write whole numbers in standard, word, and expanded form
• Compare and order whole numbers
• Round a whole number to any place
• Add & subtract whole numbers; use estimation to determine if solutions are reasonable

Vocabulary:

• place value – the value of a digit in a number, based on the location of the digit
• digit – any single number; 0-9
• standard form – a way to write numbers by using the digits 0-9 with each digit having a place value
• word form – a way to write numbers by using words
• expanded form – a way to write numbers by showing the value of each digit
• period – each group of three digits separated by commas in a multi-digit number
• addend – any number used to add
• sum – the answer to an addition problem
• difference – the answer to a subtraction problem
• compare – to describe whether numbers are equal to, less than, or greater than each other
• order – a particular arrangement or placement of things one after the other
• estimate – a number close to an exact amount
• round – to replace a number with another number that tells about how many or how much

Chapter 1 videos:

Lesson 1.1 Model Place Value Relationships (CC.4.NBT.1)

Lesson 1.2 Read and Write Numbers (CC.4.NBT.2)

Lesson 1.3 Compare and Order Numbers (CC.4.NBT.2)

Lesson 1.4 Round Numbers (CC.4.NBT.3)

Lesson 1.5 Investigate - Rename Numbers (CC.4.NBT.1)

Lesson 1.6 Add Whole Numbers (CC.4.NBT.4)

Lesson 1.7 Subtract Whole Numbers (CC.4.NBT.4)

Lesson 1.8 Comparison with Addition and Subtraction (CC.4.NBT.4)

Chapter 1 Standards: Number and Operations in Base Ten

Generalize place value understanding for multi-digit whole numbers;

CC.4.NBT.1 Recognize that in a multi-digit while number, a digit in one place represents ten times what it represents in the place to its right.

Generalize place value understanding for multi-digit whole numbers;

CC.4.NBT.2 Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meaning of the digits in each place using >, =, and < symbols to record the results of comparisons.

Generalize place value understanding for multi-digit whole numbers;

CC.4.NBT.3 Use place value understanding to round multi-digit whole numbers to any place.

Use place value understanding and properties of operations to perform

multi-digit arithmetic;

CC.4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.