If 47 - 56 + 14 - 8 + 2 - 8 + 5 = - 4, then find the value of-47 + 56 - 14 + 8 - 2 + 8 - 5. Class 7
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If 47 - 56 + 14 - 8 + 2 - 8 + 5 = - 4, then find the value of-47 + 56 - 14 + 8 - 2 + 8 - 5. Class 7
Question 1.
If 47 - 56 + 14 - 8 + 2 - 8 + 5 = - 4, then find the value of-47 + 56 - 14 + 8 - 2 + 8 - 5 without calculating the full expression. Class 7
Solution:
4, because all numbers are additive inverse of each other.
Question 2.
Do you remember the Collatz Conjecture from last year? Try a modified version with integers. The rule is — start with any number; if the number is even, take half of it; if the number is odd, multiply it by - 3 and add 1; repeat. An example sequence is shown below. Class 7
Try this with different starting numbers: (- 21), (- 6), and so on.
Describe the patterns you observe.
Solution:
Do as directed. One has been done for you.
-21, 64, 32, 16, 8, 4, 2, 1, -2, -1, 4, 2, 1, and so on.