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Rounding and Place Value

Standards for Unit 1

MGSE4.NBT.1: Recognize that in a multi-digit whole number, a digit in any one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.

MGSE4.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 meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

Expanded Form: 4,256 = 4,000 + 200 + 50 + 6

MGSE4.NBT.3: Use place value understanding to round multi-digit whole numbers to any place.

MGSE4.NBT.4: Fluently add and subtract multi-digit whole numbers using the standard algorithm.

Vocabulary for Unit 1

1) Value: the amount a digit is worth

2) Word Form: how a number is written with words or said aloud

3) Standard Form: how a number is written with numerals

4) Expanded Form: how a number is written to show the place value of each digit

5) Period: digits in groups of three in a large number

6) Compare: to decide if one number is greater than, less than, or equal to another number

7) Greater Than: a comparison that says one number has greater value than another number (>)

8) Less Than: a comparison that says one number has less value than another number (<)