Easy Algebra Step-by-Step

Computation with Real Numbers 19

Step 2. Subtract 35 from 60 because − 60 > 35.

60 −= 3535 25

Step 3. Make the sum negative because −60 has the greater absolute value.

35 +− 60 =− 25

c. −+ 35 60

Step 1. Determine which addition rule applies.

−+ 35 60

The signs are opposites (one negative and one positive), so use

Rule 2.

Step 2. Subtract 35 from 60 because 60 >− 35.

60 −= 3535 25

Step 3. Keep the sum positive because 60 has the greater absolute value.

−+ 35 60 = 25

d. −+

2

9

7

9

Step 1. Determine which addition rule applies.

−+

2

9

7

9

The signs are opposites (one positive and one negative), so use

Rule 2.

Step 2. Subtract

2

9

from

7

9

because

7

9

2

9

>−.

7

9

2

9

5

9

−=

Step 3. Keep the sum positive because

7

9

has the greater absolute value.

−+=

2

9

7

9

5

9