Unit 1 focuses on number system fluency. Students can expect problems that involve adding, subtracting, multiplying, and dividing fractions, decimals, and whole numbers. Much of unit one is a review of concepts from 5th grade, but the problems will be more complex.

Here is the Cobb County Schools parent letter for Unit 1:

Here are helpful video links, organized by concept. Use these to preview, review, and study!

### Whole Number Operations:

Multi Digit Multiplication – Standard Algorithm

Turning a Whole Number Remainder Into a Decimal

### Decimal Operations:

Adding and Subtracting Decimals

Converting a Fraction to a Decimal

### Operations with Fractions:

Adding and Subtracting Fractions

Adding and Subtracting Fractions

Adding and Subtracting Mixed Numbers