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Basics

Pre-algebra fluency: numbers, integers, and balancing equations

1. 1
   World 1Open

   Number sense

   Place value, factors and primes, fractions, decimals, percents and ratios

   Enter World 1
2. 🔒
   World 2Locked

   Integers & order

   Negatives, absolute value, and order of operations

   Clear the previous world to open this path.

3. 🔒
   World 3Locked

   Balance

   Equality, balancing a scale, and one-step equations

   Clear the previous world to open this path.