Simplifications Test-2 (Previous Year Question)

  • 6th Grade,
  • 7th Grade,
  • 8th Grade,
  • 9th Grade
  • CCSS.Math
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| By Ashwin
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Quizzes Created: 6 | Total Attempts: 780
| Attempts: 121 | Questions: 10 | Updated: Mar 15, 2025
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1) √628 * 17.996 ÷ 15.04 = ?

Explanation

We can approximate the same as √625 *18 / 15 = 25 * 6/5 = 25 * 1.2 = 30

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About This Quiz
Simplifications Test-2 (Previous Year Question) - Quiz

This quiz, titled 'Simplifications Test-2 (Previous year question)', features a series of arithmetic problems that involve operations such as addition, subtraction, multiplication, division, percentages, and square roots, aimed at testing simplification skills.

2)
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2) 17.982 + 4.05 * 90.11 ÷ 4.98 =?

Explanation

This can be approximated as 18 square + 4 * 90 / 5
Apply BODMAS, we get,

324 + 4 * 18 = 324 + 72 = 396

Submit
3) 80.04% of 150.16 + 60.02% of 50.07 = ?

Explanation

This can be approximated as 80% of 150 + 60% of 50

80% of 150 = 8*15 = 120
60% of 50 = 6*5 = 30

So 120 + 30 = 150

(Kindly refer Speed Math practice sheets to master percentages calculations)

Submit
4) 1/8 * 121 + 1/5 * 76 - ?  =25

Explanation

We can approximate this as 1/8 * 120 + 1/5 * 75 - ? = 25

15 + 15 - ? = 25

30 - ? = 25

? = 5

Submit
5) Here is an interesting question for you. 7 + 7 ÷ 7 + 7 * 7 - 7 =?

Explanation

Apply BODMAS,

7 + 1 + 49 - 7 = 50

Submit
6) ?+ 30.01% of 651 ÷ 25.05% of 59.98 = 135 

Explanation

This can be approximated as ? + 30% of 650 ÷ 25% of 60 = 135

? + 195 / 15 = 135

? = 122

Submit
7) 3899 ÷ 11.99 - 2379 ÷ 13.97=?

Explanation

This can be approximated as 3900 / 12 - 2380 / 14 = 325 - 170 = 155

Submit
8) 1599 ÷ 39.99 + 4/5 * 2449 - 120.5 = ? 

Explanation

We can approximate this as 1600 ÷ 40 + 4/5 * 2450 - 120

40 + 1960 - 120 = 1880

Submit
9) 1576 ÷ 45.02 + 23.99  * √255 =?

Explanation

This can be approximated as 1576 ÷ 45 + 24 * √256

= 35 + 24 * 16 = 420 (Approx)

Submit
10) 90.05 + 281 ÷ 4 -151.06 = 3√?

Explanation

We can approximate this as 90 + 280/4 - 151

Apply BODMAS rule,

90 + 70 - 151 = 3√?
9 = 3√?
? = 9*9*9 = 729

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√628 * 17.996 ÷ 15.04 = ?
17.982 + 4.05 * 90.11 ÷ 4.98 =?
80.04% of 150.16 + 60.02% of 50.07 = ?
1/8 * 121 + 1/5 * 76 - ?  =25
Here is an interesting question for you. 7 + 7 ÷ 7 + 7...
?+ 30.01% of 651 ÷ 25.05% of 59.98 = 135 
3899 ÷ 11.99 - 2379 ÷ 13.97=?
1599 ÷ 39.99 + 4/5 * 2449 - 120.5 = ? 
1576 ÷ 45.02 + 23.99  * √255 =?
90.05 + 281 ÷ 4 -151.06 = 3√?
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