8TH GRADE MATH WORKSHEET 3

About "8th grade math worksheet 3"  

8th grade math worksheet 3 :

Here we are going to see 10 practice questions of mixed topics. We have been preparing this set of questions in order to test how you understood the topics.

Practice questions of mixed topics in 8th grade math

Question 1 :

What fraction should be added with -4/9 to get 6/17 ?

(A)   104/163      (B)   136/151       (C)   122/153

Need solution

Question 2 :

Find for which value of x is the following equation true? 44x-7 = 4x - 1 .

(A) 2            (B) 3             (C) 4

Need solution

Question 3 :

Express 412 x 10-9 in standard form. 

(A) 41.2 x 107       (B) 4.12 x 10-7     (C) 4.12 x 109

Need solution

Question 4 :

Find the value of 5x - 6y - 8z if x = 2, y = 3 and z = -2.

(A) 5           (B) 8         (C) -18

Need solution

Question 5 :

A number is 7 times greater than another number. If their sum is 96, find the numbers.

(A) 49, 51          (B) 84, 12         (C) 21, 75

Need solution

Question 6 :

Which of the following are Pythagorean triplet?

(A) 12, 16, 20    (B) 9, 12, 15     (C) 10, 12, 34

Need solution

Question 7 :

Which of the following is the cube of the even number?

(A) 343     (B) 729      (C) 1728

Need solution

Question 8 :

Find the square root of 98464

(A) 272      (B) 242       (C) 212

Need solution

For more examples please visit "Square root by long division method"

Question 9 :

The sum of two numbers is 80 and their ratio is 3:5.Find the numbers.

(A) 30 and 50     (B) 18 and 30     (C) 21 and 35

Need solution

Question 10 :

Find the value of x ° if the lines AB and CD are parallel to each other

(A)   90°               (B)   123°            (C)   57°

Need solution

Answers:

(1)  122/153

(2)  2

(3)   4.12 x 10-7

(4)  8

(5)  12 and 84

(6)  12, 16, 20

(7)  1728

(8)  272

(9)  30 and 50

(10)  57

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