Adding Rational Numbers

Fill in the blank for the following rule: If the rational numbers have same signs, ______________ the absolute values and keep the common sign.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

-2.61 + (-6.88)

• 9.49
• -9.49
• 4.27
• -4.27

Tags

CCSS.7.NS.A.1C

 $\frac{5}{9}+-\frac{3}{4}$  

•  $-\frac{7}{36}$  

•  $\frac{7}{36}$  

•  $\frac{8}{13}$  

•  $-\frac{8}{13}$  

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

 $-1\frac{1}{5}+\left(-\frac{3}{5}\right)$  

•  $-\frac{3}{5}$  

•  $-1\frac{4}{5}$  

•  $\frac{3}{5}$  

•  $1\frac{4}{5}$  

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

- 87 + -36

• 123
• -123
• 55
• -55

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

What's a way to define absolute value?

• The value of a number
• The opposite of a number
• The distance of a number from zero
• The multiplicative inverse of a number

Tags

CCSS.6.NS.C.7C

If the temperature in Chicago is -5 degrees and the temperature in Moscow is 8 degrees colder. What is the temperature in Moscow?

• -3 degrees
• -13 degrees
• 3 degrees
• 13 degrees

Tags

CCSS.7.NS.A.1C

A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet above the surface of the water. How far apart are the diver and the fisherman?

• 28 feet
• -28 feet
• 52 feet
• -52 feet

Tags

CCSS.7.NS.A.1C

Fill in the blank for the following rule: If the rational numbers have different signs, ____________________ the absolute values and keep the sign of the number with the biggest absolute value.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.1

CCSS.7.NS.A.3

Which situation could be represented by the equation: - 30 + 30 = 0 ?

• Jacob bought a hat for $30. He then bought some headphones for $30.

• Charmeal loaned $30 to her brother. She then paid her back $30 the next day.

• Shoney drove 30 miles to the library. She then drove 30 more miles to her college.

• Alysha filled a tank with 30 gallons of water. She then filled the tank with 30 more gallons.

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.1

CCSS.7.NS.A.3