Combining Rational Numbers

-2.61 + (-6.88)

• 9.49
• -9.49
• 4.27
• -4.27

2/4 + -5/4

• -7/4
• 3/4
• -3/4
• -7/8

Add: 1/4 + (-3/8)

• 1/8

• -1/4

• -1/8

• 1/4

When adding rational numbers with the same sign, you must:

• Subtract and keep the sign of the biggest number

• Add together and keep the sign

• Keep, change, flip

• Add the opposite

When adding rational numbers with different signs, you must:

• Subtract and keep the sign of the biggest number

• Add together and keep the sign

• Keep, change, flip

• Add the opposite

• -1/16
• -1/8
• -3/4
• 3/4

What is an example of a rational number?

• -10
• 1/3
• -5.5
• All of the above

Add: -3.6 + 7.5

• -11.1

• 11.1

• -4.9

• 3.9

-3.782 + -0.24

• 3.373

• 2.893

• -4.022

• -2.893

Find the sum −2¼ + −3⅞

• 1⅝
• −1⅝
• −6⅛
• 6⅛