Homework Practice

Printable assignment

Algebra Codes, Lines and Angle Puzzles

Section A: Algebra Codes

Question 1mcq

If x + 7 = 15, what is x?

A.7

B.22

C.8

D.15

Question 2mcq

A number multiplied by 4 is 36. Which equation matches this?

A.x + 4 = 36

B.x - 4 = 36

C.4x = 36

D.36x = 4

Question 3mcq

If 3y = 21, what is y?

A.6

B.7

C.18

D.24

Question 4mcq

Which expression means '5 more than twice a number'?

A.5n + 2

B.2n + 5

C.2n - 5

D.2 + 5n

Question 5mcq

If a notebook costs ₹x and a pen costs ₹10, what is the cost of 3 notebooks and 1 pen?

A.x + 30

B.3x + 10

C.3x - 10

D.10x + 3

Question 6mcq

If p - 9 = 13, what is p?

A.22

B.-22

C.13

D.4

Section B: Lines and Angle Puzzles

Question 7mcq

Two angles on a straight line add up to:

A.90°

B.180°

C.100°

D.360°

Question 8mcq

If one angle in a linear pair is 65°, what is the other angle?

A.65°

B.25°

C.115°

D.180°

Question 9mcq

An angle greater than 90° but less than 180° is called:

A.Right angle

B.Reflex angle

C.Acute angle

D.Obtuse angle

Question 10mcq

If two angles are vertically opposite, they are:

A.Never equal

B.Equal

C.Always 90°

D.Always 180°

Question 11mcq

Which angle is a right angle?

A.90°

B.45°

C.180°

D.120°

Question 12mcq

If two complementary angles have one angle of 35°, what is the other?

A.35°

B.145°

C.65°

D.55°