ONLINE MATHS TEST CLASS 8 RATIONAL NUMBERS

By what number should  $\left(-3\right)^{-1}$   be multiplied so that the product becomes  $6^{-1}$   ?

•  $-\frac{1}{2}$  

•  $\frac{4}{5}$  

•  $\frac{7}{2}$  

• None of above
  

Write 9/10 as a decimal

• 9.10
• .09
• .9
• 9

Tags

CCSS.5.NBT.A.3

CCSS.5.NF.B.3

Which of the following rational numbers is the smallest?

• 0.41
• 2/5
• 0.5
• 3/8

Tags

CCSS.5.NBT.A.3

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a ratio.
• A rational number cannot be a repeating  decimal.
• A rational number is a never ending never repeating decimal.

Tags

CCSS.6.NS.A.1

CCSS.6.RP.A.1

The product of a rational number and its reciprocal is --------.

• 1

• 2

• 3

• 4

rational numbers between 4 and 5

• 9/2

• 4/5

• 5/6

• 8/9

What should be added to -5/4 to get -1?

• 1 / 4

• 3 / 4

• 5 / 3

• 52 / 56

Which of the following is the identity element?

• 1

• -1

• 0

• 4

Which of the following is the reciprocal of the reciprocal of a rational number?

• 1

• 0

• 3/4

• The number itself

What number should be added to 3/8 to get -1/24?

• -5/12

• -3 / 4

• 7/8

• 9 /11