THE ANSWER!!! TIP: If the above example had a list of sums that ended with a 20
*(rather than 19), the list can be added just as the original problem was added so that
the student won't have to carry here either. See the sample below.
EXAMPLE:
5830
2967
836
+ 38567
--------
30000
15000
3000
180 Here the 80 + 20 = 100. Using
20 the old method of adding, the
------- '1' would have to be carried...
40000 here we just add from left to
8000 right again to get rid of that
100 problem...
100
-------
48200 THE ANSWER!!!
TYING IT TOGETHER: Do math problems and test the kids for speed and
accuracy. I usually do a pretest without telling the kids why...having them
time the test. I keep this and give it again a couple/three weeks later once
they