I can recognize that in a whole number, a digit in one place represents ten times what it represents in the place to its right.
I can read and write whole numbers less than or equal to 1,000,000 using base-ten numerals, number names, and expanded form.
I can compare two whole numbers using >, =, and < symbols.
I can use place value to round whole numbers less than 1,000,000 to any place.
I can add and subtract whole numbers using the standard algorithm.
The focus of this unit is to provide students time to develop and practice efficient addition and subtraction of multi-digit whole numbers whil developing place value concepts.
Below you will find links and resources for our Math Unit 1.
Place Value: the value of where the digit is in the number
4th Grade Place Values: Ones, Tens, Hundreds, Thousands, Ten Thousands, Hundred Thousands, Millions
Base-ten Numerals: this is another name for the decimal number system that we use everyday; standard form (Example: 2,357)
Expanded Form: writing a number to show the value of each digit (Example: 4,265 = 4,000 + 200 + 60 + 5)
Word Form: a way to write the number using words (Example: 235 is two hundred thirty five)
Rounding: reducing the digits in a number while trying to keep its value similar. (Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80.)
Sum: the result of adding two or more numbers (Example: If you add 2 and 3, the sum is 5.)
Difference: the result of subtracting one number from another (Example: The difference between 8 and 3 is 5.)