4 multiply by 1 and 0

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MULTIPLY BY 0 AND 1

MULTIPLICATION

MATHTHIRD GRADER

2008

MULTIPLICATION TABLES

Multiply With 1 and 0There are special properties When 1 or 0 is a factor.

6 0 8 2

0 0 1 0

EXLORING

0 3 4 0

5 0 9 0

=7 =0 =0 =8

EXLORING

6 0 0 7 3 0

1 5 10 0 2 0

0 8 4 9 0 0

=0 =0 =5 =6 =1

PRACTICE

=0 =0 =9 =0 =4

The same number

PROBLEM SOLVING Daniel has the frames shown at the right to

display his autograph collection. What two multiplication sentences show the total number of autographs displayed now?

Represent Think of people whose

autograph you would like to have.

Write one autograph in each of the frames

shown at the right. What two multiplication

sentences show the total number of

autographs now?

3 frames of 0 autograph = 0

3x0=0 or 0X3=0

3x1=3 or 1X3=3

ANNA

FELIPE

ANDRES

PROBLEM SOLVING

3. Reasoning What is the least possible product when you multiply 1 by a one-digit number? Explain.

4. What’s Wrong? Kirk says that the product of 1 and any number has a 1 in the ones place. What’s wrong?

The possible product when you multiply any number by 1 is the same number.

1 x 5 = 5

6 x 1 = 6

The number in the ones place depends on the number that is multiplied by 1..

11 x 1 = 11

20 x 1 = 20

CHALLENGE MASTERSFind three squares in a row—across, up or down, or diagonally—that have the same product. Circle the squares and tell what the product is.

6 20

12 0

PRACTICE

9 0 6 7 0

0 3 5 0 8

10 2 6 0

PRACTICE

20 X 1 = 20

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