6th Grade Math Textbook, Fundamentals

Divide.

Lesson 1-6 for exercise sets. &KDSWHU 

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Find the quotient.

1. 36 (6) 2. 60 (10) 3. 25 (5) 4.

5.[72 (8)] 6.(4) (2) 7.| 66 11| 8.|110 | |11|

9.Discuss and Write Explain how the inverse operation can help you determine

the sign of the quotient of two integers. Justify your answer with examples.

9

 1

Key Concept

Divide Integers

• The quotient of two integers with like signs is positive.
  positive  positivepositive
  negativenegativepositive


• The quotient of two integers with unlike signs is negative.
  positive negativenegative
  negative positivenegative


• The quotient is 0 if the dividend is zero.
  0 n 0

You can also use rules for dividing integers.

There are special rules for division that involves 1, 1, and 0.

54  9

54  9  6 54 and 9 have like signs.

The quotient is positive.

1  64 (8)

 64 (8)  (^8) 64 and 8 have like signs.
The quotient is positive.
2
81 (9)
81 (9)  (^9) 81 and 9 have
unlike signs. The
quotient is negative.
3  144  12
 144  12  (^12) 144 and 12 have
unlike signs. The
quotient is negative.
4

• The quotient of any nonzero integer
  and 1 is that integer. aor a 1 a


• The quotient of any nonzero integer
  and 1 is the opposite of that integer. aor a(1) a


• Zero divided by any nonzero integer
  is zero. 0 or 0 a 0


• The division of any integer by zero
  is undefined. a0 or is undefined.

0

a

a

0

a

 1

a

1

Think

^91 ^9 (1)