Number, NAPX-I4-CA02

Question

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Worked Solution

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Variant 0

DifficultyLevel

465

Question

Which of the following is equal to 48?

Worked Solution
24+252^4 + 2^5 = (2×2×2×2)+(2×2×2×2×2)2 \times 2\times 2\times 2) + (2 \times 2\times 2\times 2\times 2)
= 16 + 32
= 48

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Which of the following is equal to 48?
workedSolution
>| | | | ----------- :| -------------------------------------- | | $2^4 + 2^5$| \= ($2 \times 2\times 2\times 2) + (2 \times 2\times 2\times 2\times 2)$| | | = 16 + 32| | | = 48 |
correctAnswer
$2^4 + 2^5$

Answers

Is Correct?Answer
x

22×232^2 \times 2^3

x

22×422^2 \times 4^2

x

22+232^2 + 2^3

✓

24+252^4 + 2^5

Variant 1

DifficultyLevel

466

Question

Which of the following is equal to 108?

Worked Solution
33+343^3 + 3^4 = (3×3×3)+(3×3×3×3)3 \times 3\times 3) + (3 \times 3\times 3\times 3)
= 27 + 81
= 108

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Which of the following is equal to 108?
workedSolution
>| | | | ----------- :| -------------------------------------- | | $3^3 + 3^4$| \= ($3 \times 3\times 3) + (3 \times 3\times 3\times 3)$| | | = 27 + 81| | | = 108 |
correctAnswer
$3^3 + 3^4$

Answers

Is Correct?Answer
x

32×333^2 \times 3^3

x

32×923^2 \times 9^2

✓

33+343^3 + 3^4

x

34+353^4 + 3^5

Variant 2

DifficultyLevel

465

Question

Which of the following is equal to 80?

Worked Solution
43+424^3 + 4^2 = (4×4×4)+(4×4)4 \times 4\times 4) + (4 \times 4)
= 64 + 16
= 80

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Which of the following is equal to 80?
workedSolution
>| | | | ----------- :| -------------------------------------- | | $4^3 + 4^2$| \= ($4 \times 4\times 4) + (4 \times 4)$| | | = 64 + 16| | | = 80 |
correctAnswer
$4^3 + 4^2$

Answers

Is Correct?Answer
x

26×242^6 \times 2^4

x

43×164^3 \times 16

✓

43+424^3 + 4^2

x

28÷242^8 \div 2^4

Variant 3

DifficultyLevel

464

Question

Which of the following is equal to 500?

Worked Solution
54 − 535^4 \ -\ 5^3 = (5×5×5×5) − (5×5×5)5 \times 5\times 5\times 5) \ - \ (5 \times 5\times 5)
= 625 − 125625 \ - \ 125
= 500

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Which of the following is equal to 500?
workedSolution
>| | | | ----------- :| -------------------------------------- | | $5^4 \ -\ 5^3$| \= ($5 \times 5\times 5\times 5) \ - \ (5 \times 5\times 5)$| | | = $625 \ - \ 125$| | | = 500 |
correctAnswer
$5^4 \ -\ 5^3$

Answers

Is Correct?Answer
x

55÷525^5 \div 5^2

✓

54 − 535^4 \ -\ 5^3

x

52+53×55^2 + 5^3 \times 5

x

53 − 2525^3 \ -\ 25^2

Variant 4

DifficultyLevel

471

Question

Which of the following is equal to 45?

Worked Solution
23 + 43 − 332^3 \ + \ 4^3\ -\ 3^3 = (2×2×22 \times 2\times 2) + (4×4×4) − (3×3×34 \times 4\times 4) \ - \ (3 \times 3\times 3)
= 8 + 64 − 278 \ + \ 64 \ - \ 27
= 45

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Which of the following is equal to 45?
workedSolution
>| | | | ----------- :| -------------------------------------- | | $2^3 \ + \ 4^3\ -\ 3^3$| \= ($2 \times 2\times 2$) + ($4 \times 4\times 4) \ - \ (3 \times 3\times 3$)| | | = $8 \ + \ 64 \ - \ 27$| | | = 45 |
correctAnswer
$2^3 \ + \ 4^3\ -\ 3^3$

Answers

Is Correct?Answer
x

23×33 − 432^3 \times 3^3\ -\ 4^3

x

23×43 − 332^3 \times 4^3\ -\ 3^3

x

33 + 23 − 433^3 \ + \ 2^3\ -\ 4^3

✓

23 + 43 − 332^3 \ + \ 4^3\ -\ 3^3

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