START UP MATHEMATICS>Chapter 19 - Playing with Numbers>EXERCISE 19.3>Q 9

HARD

8th CBSE

IMPORTANT

Earn 100

The numbers $1$ to $9$ have been arranged in a pattern of triangles so that the sum along each side of the triangle is $22$ . Find another such arrangement of the numbers to make the totals equal.

Important Questions on Playing with Numbers

MEDIUM

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>Problems Related to Thinking Skills>Q 1

The given figure shows a $3 \times 3$ grid. Place the digits $0 - 9$ in squares such that the sum of each row and each column is different.

Question Image

MEDIUM

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>Problems Related to Thinking Skills>Q 2

The given set of figures shows the same die from different angles. Which number should come in place of the question mark?

Question Image

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>Problems Related to Thinking Skills>Q 3

Which is the least three-digit number that is divisible by

13

but is not divisible by

2, 3, 5, 7

or

11

?

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>REVIEW EXERCISES>Q 1

If

A \times C \times AC = CCC

, where

A

and

C

are different digits, then the values of

A

and

C

are:

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>REVIEW EXERCISES>Q 2

If

*

and

o

are two operations such that

a * b = a \times b + 2

and

a o b = a + b - 1,

then the value of

{(3 * 3) * 3} o 3

is:

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>REVIEW EXERCISES>Q 3

If

a b c

is a

3 -

digit number, then

a b c - c b a

when divided by

99

will give quotient as:

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>REVIEW EXERCISES>Q 4

If

a b c

is a

3 -

digit number, then

a b c + b c a + c a b

when divided by

37

will give quotient as:

EASY

8th CBSE

IMPORTANT

START UP MATHEMATICS>Chapter 19 - Playing with Numbers>REVIEW EXERCISES>Q 5

For a

2 -

digit number

a b, a b - b a

when divided by

a - b

, gives quotient as: