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# Unit 1: Arithmetic

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### Learn

### Practice

- Adding negative numbersGet 5 of 7 questions to level up!
- Adding negative numbers on the number lineGet 5 of 7 questions to level up!

### Practice

- Subtracting negative numbersGet 5 of 7 questions to level up!
- Adding & subtracting negative numbersGet 5 of 7 questions to level up!

### Learn

### Practice

- Write decimals as fractionsGet 5 of 7 questions to level up!
- Converting fractions to decimalsGet 3 of 4 questions to level up!

### Practice

- Decimal multiplication place valueGet 3 of 4 questions to level up!
- Dividing decimals: hundredthsGet 3 of 4 questions to level up!

### Learn

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### Practice

- Lengths, weights, and money as decimalsGet 5 of 7 questions to level up!
- Word problems on multiplication and division of decimalsGet 3 of 4 questions to level up!

### Practice

- Greatest common factorGet 5 of 7 questions to level up!

### Practice

- Least common multipleGet 3 of 4 questions to level up!

### Learn

### Practice

- Relate fractions, decimals, and percentsGet 3 of 4 questions to level up!
- Convert decimals to percentsGet 3 of 4 questions to level up!
- Convert percents to fractionsGet 3 of 4 questions to level up!

### Practice

- Percent word problemsGet 5 of 7 questions to level up!
- Percentage change word problemsGet 3 of 4 questions to level up!

### Practice

- Profit and loss percent problemsGet 3 of 4 questions to level up!
- Profit and loss word problemsGet 3 of 4 questions to level up!

### Learn

### Practice

- Principal, rate of simple interest, and amount problemsGet 3 of 4 questions to level up!
- Simple interest word problemsGet 3 of 4 questions to level up!

### Learn

### Practice

- Solving proportionsGet 5 of 7 questions to level up!
- Writing proportionsGet 3 of 4 questions to level up!
- Equivalent ratio word problemsGet 3 of 4 questions to level up!

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