Number, NAPX-p116817v03

Question

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What number makes the above number sentence correct?

Worked Solution

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Variant 0

DifficultyLevel

416

Question

3 ×\times ? = 87

What number makes the above number sentence correct?

Worked Solution

Test each option:
3 × 29 = 3 × 20 + 3 × 9
= 60 + 27
= 87

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
3 $\times$ ? = 87
workedSolution
sm_nogap Test each option:
||| |-|-| |3 × 29|= 3 × 20 + 3 × 9| ||= 60 + 27| ||= 87|
correctAnswer
29

Answers

Is Correct?Answer
x

19

✓

29

x

84

x

361

Variant 1

DifficultyLevel

416

Question

3 ×\times ? = 81

What number makes the above number sentence correct?

Worked Solution

Test each option:
3 × 27 = 3 × 20 + 3 × 7
= 60 + 21
= 81

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
3 $\times$ ? = 81
workedSolution
sm_nogap Test each option:
||| |-|-| |3 × 27|= 3 × 20 + 3 × 7| ||= 60 + 21| ||= 81|
correctAnswer
27

Answers

Is Correct?Answer
x

17

✓

27

x

78

x

243

Variant 2

DifficultyLevel

416

Question

5 ×\times ? = 65

What number makes the above number sentence correct?

Worked Solution

Test each ooption:
5 × 13 = 5 × 10 + 5 × 3
= 50 + 15
= 65

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
5 $\times$ ? = 65
workedSolution
sm_nogap Test each ooption:
||| |-|-| |5 × 13|= 5 × 10 + 5 × 3| ||= 50 + 15| ||= 65|
correctAnswer
13

Answers

Is Correct?Answer
x

11

✓

13

x

60

x

325

Variant 3

DifficultyLevel

416

Question

4 ×\times ? = 68

What number makes the above number sentence correct?

Worked Solution

Test each option:
4 × 17 = 4 × 10 + 4 × 7
= 40 + 28
= 68

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
4 $\times$ ? = 68
workedSolution
sm_nogap Test each option:
||| |-|-| |4 × 17|= 4 × 10 + 4 × 7| ||= 40 + 28| ||= 68|
correctAnswer
17

Answers

Is Correct?Answer
✓

17

x

27

x

64

x

272

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