Olympiad Test : Decimals - Class 6 MCQ

To compare the numbers, we need to consider their values:

• 5.005 is the smallest because it has the smallest decimal part.
• 5.05 comes next, as it has a larger decimal part than 5.005.
• 5.5 comes after 5.05, as 5.5 is greater.
• 5.555 is the largest number.

Thus, the correct order is: 5.005 < 5.05 < 5.5 < 5.555

Therefore, the correct answer is Option B.

0.4 + 0.004 + 4.4 = ?
Converting into like decimals and then adding:

Here,
? = 1.103 – 0.3 = 0.803 

Here,
? = 3 – 0.007 = 2.993 

∴ 7.006 < 7.08 < 7.6 < 7.66
∴ 7.66 is the largest number

Given expression can be written as
8 + 0.3 + 0.04 + 0.007 = 8.347 

Here,
6 – 0.23 + 1.2 – 5.76  = ?
= 7.2 – 5.99 = 1.21 

? = 37 – 35.79 = 1.21 

Required number = 81 – 74.5 = 6.5 

Required number = 7.3 – 0.867 = 6.433 

Required number = 79.5 – 27.89 = 51.61 

Required number = 53 – 32.754 = 20.246 

? = 76.3 – 7.666 – 6.77 – 5.55 
= 76.3 – 19.986 = 56.314 

2 kg 57 g = 2 × 1000 + 57 = 2057 g

Total earning = 302.80 + 379.20 + 297.60 = 979.60 

= 15.425 

Here, 5kg 75g + 3kg 465g = 8kg 540g
∴ 9kg - 8kg 540g = 460g

Here, 4.902 + 15.376 = 20.278
then 20.278 – 16.307 = 3.971