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.

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Solution to

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

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