Wrong Sum Card
£1.00
TikTok users are sharing an addition problem that seems easy enough at first glance, but people’s mental arithmetic skills get tripped up by the same part of it. All you have to do is add up the following numbers—that’s seriously it. Try it for yourself:
1,000
40
1,000
30
1,000
20
1,000
10
If you came up with 5,000, then congratulations: You’re not alone.
But you’re also not correct. The actual right answer is 4,100.
See, it’s remarkably straightforward to add up the first bunch of numbers in your head. 1,000 plus 40 is 1,040, plus 1,000 is 2,040, plus 30 is 3,070, plus 1,000 is 3,070, plus 20 is 3,090, plus 1,000 is 4,090. But it’s at this penultimate sum that things get tricky.
Most people, when adding 10 to that figure, come up with 5,000. But that’s your brain skipping ahead (and overlooking a zero). The correct sum is actually, of course, 4,100.
Out of stock
Wrong Sum Card
£1.00
TikTok users are sharing an addition problem that seems easy enough at first glance, but people’s mental arithmetic skills get tripped up by the same part of it. All you have to do is add up the following numbers—that’s seriously it. Try it for yourself:
1,000
40
1,000
30
1,000
20
1,000
10
If you came up with 5,000, then congratulations: You’re not alone.
But you’re also not correct. The actual right answer is 4,100.
See, it’s remarkably straightforward to add up the first bunch of numbers in your head. 1,000 plus 40 is 1,040, plus 1,000 is 2,040, plus 30 is 3,070, plus 1,000 is 3,070, plus 20 is 3,090, plus 1,000 is 4,090. But it’s at this penultimate sum that things get tricky.
Most people, when adding 10 to that figure, come up with 5,000. But that’s your brain skipping ahead (and overlooking a zero). The correct sum is actually, of course, 4,100.
Out of stock