Introduction to Decimal Fractions

Q. Anita was driving at a speed of $85.6km$ per hour The road had a speed limit of $55km$ per hour By how much should she reduce her speed to be within the speed limit?
[2 Marks]

Q. 7 hours and 30 minutes is equivalent to

1. 7.5 hours
2. 7.25 hours
3. 7.30 hours
4. 7 hours

Q. There are 365.25 days in each year so every 5th year will have 366 days.

1. False
2. True

Q. By shifting the decimal in 724.56 to two places left, we get 7.2456.

1. False
2. True

Q.

If 100 paise =1 rupee then how much is 1 paise in rupee?

If 10 mm = 1 cm then how much is 0.1 mm in cm?

1. 0.01 rupee and 0.01 cm
2. 0.1 rupee and 0.01 cm
3. 0.1 rupee and 0.1 cm
4. 1 rupee and 0.01 cm

Q.

Represent 12 hours and 45 minutes as a decimal.

1. 12.55 hours

2. 12.75 hours

3. 11.53 hours

4. 12.45 hours

Q.

Which of the following is the largest measure .

1. 1.500 kg

2. 1.050 kg

3. 1.005 kg

4. 0.105 kg

Q.

If you have to represent 13 rupees and 90 paise as decimals, how would you do it?

1. ₹13.09

2. ₹13.90

3. ₹13.009

4. ₹13.99

Q.

Find the digit in the hundredths place in the number 562.3254.

1. 3

2. 5

3. 6

4. 2

Q. Burst the bubbles in which the decimal has been shifted to the left.

1. 5.0 to 50
2. 2 to 0.2
3. 0.7 to 0.07
4. 1.45 to 14.5
5. 632 to 63.2
6. 500.5 to 50.05
7. 7.77 to 77.70
8. 11.11 to 1.111