Exponents Class - VIII

Exponents Class - VIII

7th - 8th Grade

10 Qs

quiz-placeholder

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Exponents Class - VIII

Exponents Class - VIII

Assessment

Quiz

Mathematics

7th - 8th Grade

Practice Problem

Hard

Created by

Neelima Hb

Used 59+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (14)3×(14)2\left(-\frac{1}{4}\right)^{-3}\times\left(-\frac{1}{4}\right)^{-2}  Simplify :

-1/1024

-1024

1024

1/1024

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (21×51)1÷41\left(2^{-1}\times5^{-1}\right)^{-1}\div4^{-1}  

26

34

40

85

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (12)2+(13)2+(14)2\left(\frac{1}{2}\right)^{-2}+\left(\frac{1}{3}\right)^{-2}+\left(\frac{1}{4}\right)^{-2}  

45

21

29

37

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

By what number should (-1/6) be multiplied so that the product becomes 1/9.

8/9

7/6

2/3

-2/3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 5(2m+1)÷52=535^{\left(2m+1\right)}\div5^2=5^3  Find the value of m.

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Write 1450000000 in standard form .

1.45×10101.45\times10^{10}

1.45×1071.45\times10^7

1.45×1091.45\times10^9

145×109145\times10^9

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 1.896×1051.896\times10^5  Write the following in the usual form.

189600

189600000

1896

1896000

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