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# Unit 1: Number

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## About this unit

The most fundamental branch of math is having a clear idea on number sense and numeration. It consists of understanding place values, adding, subtracting, multiplying, and dividing numbers. We're willing to bet that doing these operations on whole numbers is a piece of cake, but now we'll mix those numbers up with decimals and fraction and exciting concepts like ratios and percentages. So sharpen that pencil and relax in your chair, we're going for a ride!### Learn

### Practice

- Decimals in expanded formGet 3 of 4 questions to level up!
- Compare decimal place valueGet 3 of 4 questions to level up!
- Regroup whole numbersGet 3 of 4 questions to level up!
- Regroup decimalsGet 3 of 4 questions to level up!
- Compare decimals through thousandthsGet 5 of 7 questions to level up!
- Order decimalsGet 3 of 4 questions to level up!
- Round decimals Get 5 of 7 questions to level up!
- Understand decimal roundingGet 3 of 4 questions to level up!
- Decimals on the number line: tenthsGet 3 of 4 questions to level up!
- Decimals on the number line: hundredthsGet 3 of 4 questions to level up!

### Learn

- No videos or articles available in this lesson

### Practice

- Relate factors and multiplesGet 5 of 7 questions to level up!
- Factor pairsGet 5 of 7 questions to level up!
- Identify prime numbersGet 5 of 7 questions to level up!
- Identify composite numbersGet 5 of 7 questions to level up!
- Prime factorizationGet 5 of 7 questions to level up!
- DivisibilityGet 5 of 7 questions to level up!

### Learn

- No videos or articles available in this lesson

### Practice

- Write mixed numbers and improper fractionsGet 5 of 7 questions to level up!
- Unit fractions on the number lineGet 3 of 4 questions to level up!
- Compare fractions and mixed numbersGet 3 of 4 questions to level up!
- Negative fractions on the number lineGet 3 of 4 questions to level up!

### Learn

- No videos or articles available in this lesson

### Practice

- Basic ratiosGet 5 of 7 questions to level up!
- Equivalent ratio word problemsGet 3 of 4 questions to level up!
- Ratio tablesGet 3 of 4 questions to level up!
- Finding percentsGet 5 of 7 questions to level up!
- Percent word problemsGet 5 of 7 questions to level up!
- Discount, markup, and commission word problemsGet 3 of 4 questions to level up!
- Percent problemsGet 3 of 4 questions to level up!

### Learn

- No videos or articles available in this lesson

### Practice

- Negative numbers on the number lineGet 5 of 7 questions to level up!
- Missing numbers on the number lineGet 3 of 4 questions to level up!
- Ordering rational numbersGet 3 of 4 questions to level up!
- Number oppositesGet 5 of 7 questions to level up!
- Interpreting negative numbersGet 5 of 7 questions to level up!
- Plotting inequalitiesGet 3 of 4 questions to level up!
- Compare rational numbers using a number lineGet 3 of 4 questions to level up!
- Writing numerical inequalitiesGet 5 of 7 questions to level up!

### Learn

### Practice

- Multiplying decimals like 4x0.6 (standard algorithm)Get 5 of 7 questions to level up!
- Decimal multiplication place valueGet 3 of 4 questions to level up!
- Understanding moving the decimalGet 5 of 7 questions to level up!
- Multiply and divide by powers of 10Get 5 of 7 questions to level up!
- Write fractions as decimals (denominators of 10 & 100)Get 3 of 4 questions to level up!
- Dividing whole numbers like 56÷35 to get a decimalGet 5 of 7 questions to level up!
- Dividing decimals 1Get 5 of 7 questions to level up!
- Dividing decimals 2Get 5 of 7 questions to level up!
- Dividing decimals: hundredthsGet 3 of 4 questions to level up!

### Practice

- Order of operations with negative numbersGet 5 of 7 questions to level up!
- Factor with the distributive property (no variables)Get 5 of 7 questions to level up!

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