Solution to

In the previous addition problem, none of the columns added up to more

Frame 1-9

than 9. If the sum of a column is more than 9, write down the last (right)

digit under the column and add the remaining digit(s) to the next column

3

003

(the column to the left). REMEMBER: When adding, begin with the

212 or

212

column on the far right and then go to the left.

21

021

236

236

1

326

In the first (right) column, 6 + 6 = 12.

+146

The "2" is written below the column and

3 ones + 2 ones +

472

the "1" is carried to the next column where it is added

1 one = 6 ones.

with the "2" and the "4." (The "1," "2," and "4" are all

tens.)

0 tens +1 ten +

2 tens = 3 tens.

A more complicated addition problem is shown below.

0 hundreds +

1

1 2

2 hundreds +

367

7 + 6 + 6 + 8 = 27 Write "7" carry "2"

0 hundreds =

1, 4 1 6

2 + 6 + 1 + 7 + 0 = 16 Write "6" carry "1"

3 hundreds.

6, 5 7 6

1 + 3 + 4 + 5 + 1 = 14 Write "4" carry "1"

2, 1 0 8

1 + 0 + 1 + 6 + 2 = 10 Write "10" (There

10, 4 6 7

is no column to the left.)

NOTE: You do not have to write the

commas when adding, but may help to

keep the columns straight.

Now you add these numbers: "1459," "38," and "327."

____________________________________________________________________________

Solution to

Another way of thinking about the problem

Frame 1-10

367 + 1416 + 6576 + 2108 is

1459

7+

6+

6+

8=

27

38

60 +

10 + 70 +

00 =

140

327

300 + 400 + 500 + 100 =

1300

1824

0000 + 1000 + 6000 + 2000 =

9000

10467

____________________________________________________________________________

Solution to

Frame 1-11

addition, like units must go under like units (ones under ones, tens under

tens, etc.).

No problem

was given.

Set up and work this subtraction

problem in the space to the

right: 3697 - 375

____________________________________________________________________________

MD0900

1-5

Integrated Publishing, Inc. |