The content is interactive and helps in doing faster calculations using formulas. It consists of 4 levels: Level 1. Use formula (a + b)2 = a2 + b2 + 2ab to fill the gaps.
Level 2. Link formulas by squaring expression (a + (-b))2
Level 3. Compare different methods to square 101 or 99. Get the conclusions that using an identity makes it easier.
Level 4. Practice using identities to square numbers.
Level 2. Link formulas by squaring expression (a + (-b))2
Level 3. Compare different methods to square 101 or 99. Get the conclusions that using an identity makes it easier.
Level 4. Practice using identities to square numbers.