Exponents Test

Result

Exponents Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

7² × 2²= ___

A
196

B
186

C
206

D
174

Solution

The above question can be written as,

= 7 × 7 × 2 × 2

= 49 × 4

= 196
Question 2
1 / -0

648 = ___

A
2³

B
2³×3⁴

C
2³×3

D
2³×3⁴

Solution

Factors of 648 = 2 × 2 × 2 × 3 × 3 × 3 × 3

= 2³ × 3⁴
Question 3
1 / -0

___ = (–3)² × (–5)²

A
125

B
225

C
255

D
275

Solution

The expansion of (-3)² × (-5)²

= – 3 × – 3 × – 5 × – 5

= 9 × 25

= 225
Question 4
1 / -0

___ =(– 4)³

A
-64

B
-16

C
-56

D
-48

Solution

The expansion of -4³

= – 4 × – 4 × – 4

= – 64
Question 5
1 / -0

3^--- = 3² × 3⁴ × 3⁸

A
10

B
12

C
14

D
15

Solution

By the rule of multiplying the powers with same base = a^m × aⁿ = a^m + n

Then,

= (3)^{2 + 4 + 8}

= 3¹⁴
Question 6
1 / -0

3,600= ____

A
2⁴×3²

B
2⁴×3² ×5

C
2⁴×3² ×5²

D
2×3² ×5²

Solution

Factors of 3600 = 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5

= 2⁴× 3²× 5²
Question 7
1 / -0

2³ × 5= _____

A
20

B
40

C
10

D
80

Solution

The above question can be written as,

= 2 × 2 × 2 × 5

= 8 × 5

= 40
Question 8
1 / -0

___ = (–3) × (–2)³

A
8

B
16

C
24

D
32

Solution

The expansion of (-3) × (-2)³

= – 3 × – 2 × – 2 × – 2

= – 3 × – 8

= 24
Question 9
1 / -0

2 × 10³= ____

A
20

B
200

C
2000

D
20000

Solution

The above question can be written as,

= 2 × 10 × 10 × 10

= 2 × 1000

= 2000

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Re-Attempt Weekly Quiz Competition

Exponents Test - 4

Result

Exponents Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

196

186

206

174

Solution

Question 2

23

23×34

23 ×3

23 ×34

Solution

Question 3

125

225

255

275

Solution

Question 4

-64

-16

-56

-48

Solution

Question 5

10

12

14

15

Solution

Question 6

24 ×32

24 ×32 ×5

24 ×32 ×52

2×32 ×52

Solution

Question 7

20

40

10

80

Solution

Question 8

8

16

24

32

Solution

Question 9

20

200

2000

20000

Solution

User

Question Analysis

My Perfomance

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-

Rank

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2³

2³×3⁴

2³×3

2³×3⁴

2⁴×3²

2⁴×3² ×5

2⁴×3² ×5²

2×3² ×5²