# Bridge Course for Class 7 – Class 8/Mathematics

**CBSE Class 7 Mathematics Vacation Worksheets is about the important topics that you can practice during this vacation time. This worksheet may help you to avoid the learning difficulties that happened during the online classes.**

**Bridge Course for Class 7 – Class 8/MathematicsCBSE Class 7 Mathematics/Vacation WorksheetDay: 21Get the algebraic expressions in the following cases using variables, constants and arithmetic operations:**

**Subtraction of x from y****The number p multiplied by itself****Sum of numbers x and y subtracted from their product****Numbers x and y both squared and added****Product of numbers y and z subtracted from 10**

**Day: 22**

**Add 3x + 11 and 7x -5****Add 8xy, 4xy and 2xy****Subtract a – b from 3a – b + 4****Subtract mn + 5 from 3mn – 3****Subtract 6xy from -12xy**

**Day: 23Find the values of the following expressions for x = 2**

**x + 4****2x – 5****5x – 3****7x – 4****–x + 2**

**Day: 24Express each of the following as product of powers of their prime factors:**

**512****729****648****405****3600**

**Day: 25Express the following in exponential form:**

**3 x 3 x 3 x 5 x 5****a x a x a x a x b x b x b****b x b x b x b****t x t****4 x 4 x 4 x 4 x 4**

**Day: 26Find the value of:**

**(-1) x (-1) x (-1)****(-1) x (-2) x (-3)****(-5) x (-6)****(-1) x (-2) x 0 x (-3)****(-2) x (-3) x (-4)**

**Day: 27Write the coefficient of x in each of the following:**

**5 + z + zx****x + y + 2****7 – 3x + y****1 + x + xy****-8yz**

**Day: 28Classify into monomials, binomials and trinomials:**

**4y – 7z****x + y – xy****100****ab – a – b****7mn**

**Day: 29State whether a given pair of terms is of like or unlike terms:**

**5, 50****-29x, -29y****2xy, 5yx****12x, 12y****6y, 9y**

**Day: 30Find**

**(-4) + 8****(-8) + (-4)****8 – (-4)****(-4) – (-8)****8 – (4)**