Default Title

Question (31)

QN0015457

Find 6.666 + 3.334.

(A) 9.990
(B) 10.000
(C) 10.100
(D) 9.900

Correct Answer: B

Explanation:

6.666 + 3.334 = 10.000

Link:

Report Error

Question (32)

QN0015458

Which of the following equals 4.2 + 0.08?

(A) 4.28
(B) 4.80
(C) 4.88
(D) 4.18

Correct Answer: A

Explanation:

4.20 + 0.08 = 4.28

Link:

Report Error

Question (33)

QN0015459

A shopkeeper earned ₹125.75 in the morning and ₹84.25 in the evening. Total earnings were:

(A) ₹209.00
(B) ₹210.00
(C) ₹211.00
(D) ₹208.00

Correct Answer: B

Explanation:

₹125.75 + ₹84.25 = ₹210.00

Link:

Report Error

Question (34)

QN0015460

What is 100.00 − 45.67?

(A) 54.33
(B) 55.33
(C) 53.33
(D) 56.33

Correct Answer: A

Explanation:

100.00 − 45.67 = 54.33

Link:

Report Error

Question (35)

QN0015461

Ancient Indian mathematicians contributed to decimal calculations through the development of:

(A) Roman numerals
(B) Place value system
(C) Abacus only
(D) Tally marks

Correct Answer: B

Explanation:

The place value system made decimal calculations easier.

Link:

Report Error

Question (36)

QN0015462

Why is it important to align decimal points while adding decimals?

(A) To change the value
(B) To match place values correctly
(C) To reduce digits
(D) To avoid carrying

Correct Answer: B

Explanation:

Digits of the same place value must be added together.

Link:

Report Error

Question (37)

QN0015463

A scientist recorded masses of 1.275 g and 2.625 g. Their total mass is:

(A) 3.800 g
(B) 3.900 g
(C) 4.000 g
(D) 4.100 g

Correct Answer: B

Explanation:

1.275 + 2.625 = 3.900 g

Link:

Report Error

Question (38)

QN0015464

What is the result of 8.008 − 3.003?

(A) 5.005
(B) 5.105
(C) 4.005
(D) 5.000

Correct Answer: A

Explanation:

8.008 − 3.003 = 5.005

Link:

Report Error

Question (39)

QN0015465

A water tank contains 15.75 L of water. If 4.25 L is removed, how much water remains?

(A) 11.50 L
(B) 10.50 L
(C) 12.50 L
(D) 11.00 L

Correct Answer: A

Explanation:

15.75 − 4.25 = 11.50 L

Link:

Report Error

Question (40)

QN0015466

Addition and subtraction of decimals are useful in society mainly because they help in:

(A) Accurate calculations involving money, length and mass
(B) Avoiding measurements
(C) Replacing whole numbers
(D) Eliminating units

Correct Answer: A

Explanation:

Decimal operations are used in everyday measurements and transactions.

Link:

Report Error

Question (31)

Find 6.666 + 3.334.

Explanation:

Link:

Question (32)

Which of the following equals 4.2 + 0.08?

Explanation:

Link:

Question (33)

A shopkeeper earned ₹125.75 in the morning and ₹84.25 in the evening. Total earnings were:

Explanation:

Link:

Question (34)

What is 100.00 − 45.67?

Explanation:

Link:

Question (35)

Ancient Indian mathematicians contributed to decimal calculations through the development of:

Explanation:

Link:

Question (36)

Why is it important to align decimal points while adding decimals?

Explanation:

Link:

Question (37)

A scientist recorded masses of 1.275 g and 2.625 g. Their total mass is:

Explanation:

Link:

Question (38)

What is the result of 8.008 − 3.003?

Explanation:

Link:

Question (39)

A water tank contains 15.75 L of water. If 4.25 L is removed, how much water remains?

Explanation:

Link:

Question (40)

Addition and subtraction of decimals are useful in society mainly because they help in:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY