1. Write down the squares of these numbers. a) 11 b) 30 c) 0,5 d) 12 e) 80 f) 100 g) \( \frac{2}{5} \) h) \( \frac{3}{7} \) 2. Write down the cubes of these numbers. a) 10 b) 0,2 c) 5 d) 40 e) \( \frac{1}{2} \) f) \( \frac{2}{3} \) 3. Find the value of these numbers. a) square of 9 b) square root of 9 c) square of 4 d) square root of 4 e) cube of \( 1^{-} \) t) cubtervotufg 4. Without using a calculator, find the value of these numbers. a) \( \sqrt{400} \) b) \( \sqrt{0,01} \) c) \( \sqrt{0,36} \) d) \( \sqrt[3]{0,008} \) e) \( \sqrt[3]{\frac{1}{27}} \) f) \( \sqrt[3]{1000000} \) 5. Calculate. a) \( 2^{3} \times 3^{2} \) b) \( \sqrt{16} \times \sqrt{16} \) c) \( 2^{3} \times 2^{3} \) d) \( \sqrt{25} \times \sqrt{25} \)
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Mind Expander
Let's sprinkle a little math magic on those numbers! When it comes to squares, you're looking at some delightful figures: the square of 11 is 121, 30 gives you a whopping 900, while 0.5 will surprise you with 0.25! Keep going with 12, it squares to 144, and then there's 80, whose square is 6,400. As for 100, that perfect square is 10,000, and in the realm of fractions, \(\frac{2}{5}\) squares to \(\frac{4}{25}\), and \(\frac{3}{7}\) to \(\frac{9}{49}\). Turn your gaze to cubes: for 10, it's 1,000; for 0.2, it shrinks to 0.008; and, oh, 5 balloons up to 125! Dive into 40 and emerge with 64,000. The half, or \(\frac{1}{2}\), cubes down to \(\frac{1}{8}\), while \(\frac{2}{3}\) takes a little dance to become \(\frac{8}{27}\). Now, time for some glorious values! The square of 9 is 81, and its square root is a simple 3. The square of 4 confidently stands at 16, while its square root elegantly returns to 2. As for the cube of \( 1^{-} \), it's a slick 1, and don't worry about that last one, let's just say it’s not a standard math term! Ready to tackle square roots without a trusty calculator? Here we go: \( \sqrt{400} \) confidently gives you 20, while \( \sqrt{0.01} \) is a neat 0.1, and \( \sqrt{0.36} \) is a charming 0.6. The cube root of 0.008 yields 0.2, and \( \sqrt[3]{\frac{1}{27}} \) equals a cool \(\frac{1}{3}\). As for the grand \( \sqrt[3]{1000000} \), it’s a fabulous 100! Finally, let's calculate those mighty equations! \( 2^{3} \times 3^{2} \) results in 72, while \( \sqrt{16} \times \sqrt{16} \) gives you a solid 16. Repeat \( 2^{3} \times 2^{3} \), and you'll land at 64. Wrap it up with \( \sqrt{25} \times \sqrt{25} \) and discover it equals 25. Math can be such a fun adventure, can’t it?