Mental Maths

Which number will replace the question mark in the following

• 7

• 14

• 48

• 49

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.B.5

Direction: If '+' is 'x', '-' is '+', 'x' is ' ÷ ' and ' - ' is '-', then answer the following questions based on the information.

21÷8+2−12×3=?

• 14

• 9

• 13.5

• 11

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.NS.B.2

If 40 + 10 = 30, 18 + 8 = 10, then 60 + 60 =?

• 120

• 3600

• 0

• 90

Tags

CCSS.3.OA.D.9

Direction: In the statement below, two signs in the equations given have been interchanged. Final out these two signs to make the equations correct.

6×4+2=26

• + and x, 2 and 4

• + and x, 4 and 6

• + and x, 2 and 6

• None of these

Tags

CCSS.6.EE.A.3

CCSS.6.EE.B.5

CCSS.6.EE.A.4

M and N are co-prime numbers, M represents lowest composite number and N represents lowest odd prime number. Which one of the following is the factor of their product?

• 12

• 24

• 10

• 20

Tags

CCSS.6.NS.B.4

A fan rotates on its shaft around 5 times in one second. How many times does the fan rotate in a day if there was no electricity for 2 hours?

• 396000 times

• 39600 times

• 395000 times

• 398000 times

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.RP.A.3

CCSS.6.RP.A.2

Direction: In each of the following questions choose the missing number to complete the series.

1, 3, 6, 10, ?

• 12

• 15

• 18

• 21

Tags

CCSS.4.OA.C.5

Find the missing letter, if a certain rule is followed either row-wise or column-wise.

• U

• V

• W

• X

Tags

CCSS.4.OA.C.5

Which is the odd one out?

• O

• F

• M

• A

How many C's are there in the following sequence, which are immediately preceded by D?

A B D C D C C D C L C D D C I D C C D

• Two

• Three

• Four

• Five

Tags

CCSS.K.CC.B.5