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Problem: 52 * 93 = ______

Step One: Draw two boxes (each box should be about one inch high by one inch wide.)

Problem: 52 * 93 = ______

Step Two: Draw two more boxes underneath.

Problem: 52 * 93 = ______

Step Three: Divide each box diagonally from the top right to the bottom left.

Problem: 52 * 93 = ______

Step Four:

Write the tens digit of the first number over the top left box.

Write the ones digit of the first number over the top right box.

(Put the 5 from the 52 over the top left box.)

(Put the 2 from the 52 over the top right box.)

5 / 2

Problem: 52 * 93 = ______

Step Five:

Write the tens digit of the second number to the right of the top right box.

Write the ones digit of the second number to the right of the bottom right box.

(Put the 9 from the 93 to the right of the top right box.)

(Put the 3 from the 93 to the right of the bottom right box.)

5 / 2
/ / 9
/ / 3

Problem: 52 * 93 = ______

Step Six: You are ready to MULTIPLY! (You can do the next several steps in any order.)

Let’s multiply the two and the nine.

2 * 9 = 18. Write the product (18) in the top right box, where the top half of the box is the tens digit, and the bottom half is the ones digit.

tens
ones
5 / 2
/ / 1
8 / 9
/ / 3

Problem: 52 * 93 = ______

Step Seven:

Let’s multiply the five and the nine.

5 * 9 = 45. Write the product (45) in the top left box, where the top half of the box is the tens digit, and the bottom half is the ones digit.

tens
ones
5 / 2
/ 4
5 / 1
8 / 9
/ / 3

Step Eight:

Let’s multiply the two and the three.

2 * 3 = 6. Write the product (6) in the bottom right box, do not put anything in the top half of the box because there are no tens, and put the six in the bottom half since it is the ones digit.

tens
ones
5 / 2
/ 4
5 / 1
8 / 9
/ / 6 / 3

Step Nine:

Let’s multiply the five and the three.

5 * 3 = 15. Write the product (15) in the bottom left box, where the top half of the box is the tens digit, and the bottom half is the ones digit.

tens
ones
5 / 2
/ 4
5 / 1
8 / 9
/ 1
5 / 6 / 3

Step Ten: Now we are ready to ADD!

You add along the diagonals, from the bottom up.

The first diagonal just has 6 in it.

tens
ones
5 / 2
/ 4
5 / 1
8 / 9
/ 1
5 /
6 / 3
6

Step Eleven: Now we are ready to ADD!

You add along the diagonals.

The second diagonal just has 8 and 5 in it. 8 + 5 = 13. Write the 3 down and carry the one into the next column.

tens
ones
5 / 2
/ 4
5 / 11
8 / 9
/ 1
5 / 6 / 3
3 / 6

Step Twelve: Now we are ready to ADD!

You add along the diagonals.

The third diagonal has a 1, 5, 1, and the 1 you just carried. 1 + 5 + 1 + 1 = 8. Write the 8 down at the bottom of the column.

tens
ones / 5 / 2
/ 4
5 / 11
8 / 9

8 / 1
5 / 6 / 3
3 / 6

Step Thirteen: Now we are ready to finish ADDING!

You add along the diagonals.

The last column just has a 4.

tens
ones
5 / 2

4 / 4
5 / 11
8 / 9

8 / 1
5 / 6 / 3
3 / 6

Step Thirteen: YOU ARE DONE!

The answer is 4, 836! (You just added to get that number!)

tens
ones
5 / 2

Answer=

/
4 / 4
5 / 1
8 / 9

8 / 1
5 / 6 / 3
3 / 6