1 00:00:00,240 --> 00:00:00,880 Hi everybody! 2 00:00:00,990 --> 00:00:02,670 It's Jason again from Collaborative Mathematics. 3 00:00:02,880 --> 00:00:05,960 This is challenge number six, with special thanks 4 00:00:06,100 --> 00:00:07,880 to my friend Scott for the idea! 5 00:00:12,160 --> 00:00:15,460 The challenge this time is actually rather easy to explain. 6 00:00:15,630 --> 00:00:17,690 I'm going to give you two building blocks: 7 00:00:17,960 --> 00:00:20,490 the number eight and the plus sign. 8 00:00:20,880 --> 00:00:25,370 And your goal is to build an expression that equals 1000. 9 00:00:25,750 --> 00:00:27,100 It's just that easy. 10 00:00:27,370 --> 00:00:28,950 You can use as many eights as you want. 11 00:00:29,370 --> 00:00:30,950 You can use as many plus signs as you want. 12 00:00:31,420 --> 00:00:34,280 If you felt like it would be helpful, you could 13 00:00:34,520 --> 00:00:38,630 take multiple eights and smash them together. Like, you could take two eights 14 00:00:38,880 --> 00:00:39,710 and make eighty-eight. 15 00:00:40,030 --> 00:00:44,270 In any case, the goal is simply that: an expression that contains 16 00:00:44,500 --> 00:00:48,780 only eights and plus signs that, in the end, equals 1000. 17 00:00:50,230 --> 00:00:52,400 Now, while you're working on this challenge 18 00:00:52,850 --> 00:00:56,630 you may discover more than one way of solving it. 19 00:00:56,790 --> 00:01:00,640 I mean, you might find more than one expression that contains only eights 20 00:01:00,790 --> 00:01:02,810 and plus signs that adds up to 1000. 21 00:01:03,170 --> 00:01:04,440 And that would be cool. 22 00:01:05,080 --> 00:01:06,970 But then, the next question that should start 23 00:01:07,220 --> 00:01:12,610 rolling around in your brain is: How many different ways are there? 24 00:01:13,020 --> 00:01:16,030 Right? If you can find more than one way, great! But can you find all of the ways? 25 00:01:16,310 --> 00:01:17,590 How many ways are there? Who knows! 26 00:01:17,810 --> 00:01:19,570 This is something else to explore! Isn't that cool! 27 00:01:19,850 --> 00:01:25,230 So, finding one way is great. Finding *all* the ways is *really* great! 28 00:01:25,580 --> 00:01:27,590 Maybe you want to take on that challenge, too. 29 00:01:28,340 --> 00:01:30,550 If you like these challenges from Collaborative Mathematics 30 00:01:30,730 --> 00:01:35,500 you can follow us on Twitter. We're on Facebook, you can like us there. 31 00:01:35,870 --> 00:01:39,460 Or you could just visit us online. We're at CollaborativeMathematics.org 32 00:01:40,260 --> 00:01:41,640 And that's it. OK! 33 00:01:42,000 --> 00:01:43,160 I look forward to seeing what happens next! 34 00:01:43,340 --> 00:01:44,310 Have fun!