Rational numbers

The rational number which is equal to its negative is

• 1

• -1

• 0

• 1/2

Tags

CCSS.6.NS.C.6A

For any rational number a, what will be a÷0

• 0

• a

• 1

• not defined

Tags

CCSS.HSN.RN.B.3

The additive inverse of -a/b is

• b/a

• a/-b

• a/b

• -b/a

Tags

CCSS.7.NS.A.1B

The rational numbers that are equal to their reciprocals are

• -2,2

• 0,-1

• 1,-1

• not possible

Tags

CCSS.HSN.RN.B.3

How many rational numners are there between -1 and 1

• 1

• 0

• infinite

• 3

Tags

CCSS.6.NS.C.6C

The sum of a rational number and its additive inverse is

• 1

• 2

• -1

• 0

Tags

CCSS.7.NS.A.1B

The additive identity for rational number -8/9 is

• 8/9

• 9/8

• 0

• 1

Tags

CCSS.7.NS.A.1B

The reciprocal of $\frac{-3}{5}\times\frac{15}{-9}$ is

• 1

• -1/3

• 1/3

• 0

Rational numbers are not closed under

• addition

• subtraction

• multiplication

• division

Tags

CCSS.HSN.RN.B.3

The multiplicative inverse of  $3\frac{1}{3}$  is

• 1/3

• 0.3

• 10/3

• 3

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1