Grade 7 - Algebra-Expressions-and-Equations

(Sample Online worksheet)

Fill in the blanks

1)Solve the equations to find value of variable in equation
A)  
-4x - 2
-2
  -  
3x + 2
5
  =  
-0.1x + 21.8
-10
 
x =
B)  
4b - 3
5
  -  
-3b - 5
4
  =  
-0.5b + 231
-20
 
b =
2)Ages of Nancy and Patricia are in ratio 1:7 . If sum of their ages is 40 years, age of Patricia is years.
3)If number in the center is the sum of all other numbers, z= .

4)If is multiplied by 4, it increases by 39.

Choose correct answer(s) from given choice

5)Ruth wants to print some brochures for her business. If she goes for one style, it will cost her $ 89.5 plus $ 0.05 per brochure. If she goes for the other style, it will cost her $ 25 plus $ 0.2 per brochure. For how many brochures will the price for both styles be the same?
a. 445 b. 430
c. 420 d. 425
6)The number of days left in the month of June are five times of the number of days already passed. How many days have already passed in the month ?
a. 10 days b. 5 days
c. 15 days d. 0 days
7)Find the The difference between smallest n digit number and largest m digit number. (assume n > m).
a. (10n-1-1) - (10m+1) b. 10n-1 - (10m-1)
c. (10n-1+1) - (10m-1) d. (10n-1 - 1) - 10m-1
8)If  
x
y
  =  
21
8
 , then identify the incorrect expression from the following.
a.  
21
8
 y - x = 0
b.  
x + y
x - y
  =  
29
13
 
c.  
8
21
 x - y = 0
d. 8 y = 21 x
9)Find largest n digit number.
a. 10n+1 - 1 b. 10n+1 - 10n
c. 10n - 1 d. 10n
10)2x +8x2 +5 +4x3 is a,
a. Quadrinomial b. Trinomial
c. Monomial d. Binomial
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