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# Unit 1: Numbers and operations

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## About this unit

Math is all about numbers (like 89 and 3.14) and operations (like addition and multiplication). In these tutorials, we learn about a some new types of numbers and some new types of operations.

### Learn

### Practice

- Writing fractions as repeating decimalsGet 5 of 7 questions to level up!
- Converting repeating decimals to fractionsGet 5 of 7 questions to level up!
- Converting multi-digit repeating decimals to fractionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Classify numbers: rational & irrationalGet 5 of 7 questions to level up!
- Classify numbersGet 5 of 7 questions to level up!

### Learn

### Practice

- Approximating square rootsGet 3 of 4 questions to level up!
- Comparing irrational numbersGet 5 of 7 questions to level up!
- Comparing irrational numbers with a calculatorGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Exponents with integer basesGet 5 of 7 questions to level up!
- Exponents with negative fractional basesGet 3 of 4 questions to level up!
- Signs of expressions challengeGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

Up next for you:

Level up on all the skills in this unit and collect up to 1,100 Mastery points!