Revision (Real Numbers)

Which of the following numbers is rational ?

Tags

CCSS.8.NS.A.1

Which of the following numbers is irrational ?

• 3/9

• 1/7

Tags

CCSS.8.NS.A.1

• 6 and 7

• 7 and 8

• 8 and 9

• 9 and 10

Tags

CCSS.8.NS.A.2

• -81

• 81

• -18

• 18

Tags

CCSS.6.EE.A.1

The sum of the given pattern is ;

1 + 2 + 3 + 4 + ..... + 9 + 10 + 11 + 10 + 9 + ...... + 3 + 2 + 1

• 11

• 10

• 121

• 100

• 1 + 2 + 3 + ..... + 23 + 24 + 25 + 24 + ...... + 3 + 2 + 1

• 1 + 2 + 3 + ..... + 24 + ...... + 3 + 2 + 1

• 1 + 2 + 3 + ..... + 576 + ...... + 3 + 2 + 1

• 1 + 2 + 3 + ..... + 48 + ...... + 3 + 2 + 1

Tags

CCSS.3.OA.D.9

The sum of first 7 odd numbers is equal to ____

• 7

• 49

• 14

• Infinite

Which smallest number should be multiplied by 18 to make it a perfect square ?

• 2

• 3

• 5

• 9

The correct prime factorization of 60 is :

• 2 x 2 x 3 x 5 x 5

• 2 x 2 x 3 x 5

• 2 x 2 x 3 x 3 x 5

• 2 x 3 x 5

Which of the following numbers is suitable to fill the red box ?

• 125

• 130

• 425

• 32.5

Tags

CCSS.5.NBT.B.5