04.06.2014, 16:13
Well a great lesson about the decimal system and, well, addition.. if you add 100 to 99, you get 199. A trick to working this out, is to imagine the numbers with a matching amount of digits (where any which weren't there are 0) like this:
1000 +
0999 =
1999
2500 +
0099 =
2599
Anywhere there's a 0, a digit can be added (assuming all digits before it are also 0) and it won't change the rest of the number. So I guess you could say it's "prefixed" - but it's simple addition, really
1000 +
0999 =
1999
2500 +
0099 =
2599
Anywhere there's a 0, a digit can be added (assuming all digits before it are also 0) and it won't change the rest of the number. So I guess you could say it's "prefixed" - but it's simple addition, really