FRAME 1-25.
Solution to
23.
Frame 1-24
Set up and solve this problem: 2,461
You haven't finished the
problem yet! The answer
is 27.0666666666666 with
the 6's continuing forever.
Knowing how to stop
(rounding) is covered in
Lesson 3.
____________________________________________________________________________
FRAME 1-26.
Solution to
CHECKING. Once you have worked a problem, how do you know if you
Frame 1-25
arrived at the correct answer? One way is to do the problem over again
from the beginning (and hope that you don't make the same mistake
107
twice). Another way is to check (verify) your answer by rearranging the
23/ 2461
problem and solving the new problem.
23
16
For example, when you subtract, you can check your answer (the
0
difference) by adding the difference to the subtrahend. If your subtraction
161
was correct, the resulting sum will be the minuend.
161
0
Look at this problem:
300 (minuend)
Check:
135 (difference)
-165 (subtrahend)
+ 165 (subtrahend)
135 (difference)
300 (minuend)
Solve and check this problem:
455
Check:
- 50
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MD0900
1-11