Add/Subtract Rational Numbers

What is the best definition for a rational number?

• a number that can be written in the form p/q, where p and q are integers.

• a number that an be written in the form q/p, where p and q are fractions.

• a number that can be written in the form p/q, where p and q are odd numbers

Tags

CCSS.8.NS.A.1

9.01 - (- 4.09)

• 13.10
• 4.82
• -13.00
• 5.02

Tags

CCSS.7.NS.A.1C

Find -6.23 + 7.5

• 13.73

• 1.3

• -1.27

• 1.27

Tags

CCSS.7.NS.A.1C

-3/7 + 4/5

• 43/35

• -13/35

• 13/35

• 17/35

• Answer not given

Tags

CCSS.7.NS.A.1C

-40 + 15.05=

• 55.05

• 24.95

• -24.95

• -14.65

• -25.95

Tags

CCSS.7.NS.A.1C

−28 + (−8)=

• 36

• −36

• −20

• 20

Tags

CCSS.7.NS.A.1C

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, switch

• Add the opposite

Tags

CCSS.7.NS.A.1C

 $\frac{1}{4}--\frac{3}{4}$  

•  $-\frac{1}{2}$ 

•  $\frac{4}{0}$  

• 1

• None of the above

Tags

CCSS.7.NS.A.1C

Convert 2/5 to a decimal and a percent

• .25 and 25%

• 2.5 and 25%

• 0.4 and 40%

• .04 and 4 %

Tags

CCSS.6.NS.A.1

Choose the BEST answer: the definition of an integer is

• any number
• any positive or negative whole number
• zero
• all numbers including fractions and decimals

Tags

CCSS.6.NS.C.5