1. Which is the largest of the following numbers?   23 × 52   √(216)   63   (√225)2   21 3√1000   Hint Half-n-half Clue   2. 33 × 52 / 62 =   18.75   6.5   18.25   6.25   6.75   Half-n-half Clue   3. √112 − √63 + √28 =   9 √3   7 √3   √77   3 √7   9 √7   Half-n-half Clue   4. Which is the smallest of the following numbers?   21 √20   11 √80   8 √125   15 √45   7 √180   Half-n-half Clue   5. √3 (3 √12 − 5 √3) =   18 − 5 √3   6 √3 − 15   33   3   √3   Half-n-half Clue   6. √7 (7 √20 − 7 √75) =   35 √35 − 14 √21   35 √5 − 14 √3   5 √14 − 3 √35   14 √5 − 35 √3   14 √35 − 35 √21   Half-n-half Clue   7. √147 =   49   49 √3   21   73   7 √3   Half-n-half Clue