MEDIUM
7th CBSE
IMPORTANT
Earn 100

Simran travelled 3m2+3n+4 km straight on a road and then came back 3n+m2+2 km on the same road. How far is she now from the starting point?

Important Questions on Algebraic Expressions

MEDIUM
7th CBSE
IMPORTANT

Fill in the table by substituting the values in the given expressions:

Expression x=0 x=-1 x=1 x=3 x=10 x=100 x=500
2x-15              
x2-x+1              
-5x+x2              
100-4x              
50x-60              
x+10              
EASY
7th CBSE
IMPORTANT

Observe the following pattern of squares made using dots.

Question Image

Here if n is taken as the number of dots in each row or in each column, then the total number of dots in nth figure is n2. Find the number of dots in a figure having:

10 dots in a row.

EASY
7th CBSE
IMPORTANT

Observe the following pattern of squares made using dots.

Question Image

Here if n is taken as the number of dots in each row or in each column, then the total number of dots in nth figure is n2. Find the number of dots in a figure having:

16 dots in a row.

EASY
7th CBSE
IMPORTANT

Observe the following pattern of squares made using dots.

Question Image

Here if n is taken as the number of dots in each row or in each column, then the total number of dots in nth figure is n2. Find the number of dots in a figure having:

20 dots in a row.

EASY
7th CBSE
IMPORTANT

Observe the following pattern of squares made using dots.

Question Image

Here if n is taken as the number of dots in each row or in each column, then the total number of dots in nth figure is n2. Find the number of dots in a figure having:

50 dots in a row.

EASY
7th CBSE
IMPORTANT

Observe the following pattern of writing the digit 4 using line segments of equal length.

Question Image

Here, if n 4 s will be written, then 3n+1 line segments will be used. Find the number of line segments required to write: ten 4 s

EASY
7th CBSE
IMPORTANT

Observe the following pattern of writing the digit 4 using line segments of equal length.

Question Image

Here, if n 4 s will be written, then 3n+1 line segments will be used. Find the number of line segments required to write: fifteen 4 s

EASY
7th CBSE
IMPORTANT

Observe the following pattern of writing the digit 4 using line segments of equal length.

Question Image

Here, if n 4 s will be written, then 3n+1 line segments will be used. Find the number of line segments required to write: hundred 4 s