Mathematics Questions - Class 7

Question 1

How many zeros are there in one lakh when written in digits?

Accepted Answer

5

Answer

4

Answer

6

Answer

7

Question 2

If you eat 2 varieties of rice each day, how many varieties will you taste in 100 years (ignoring leap years)?

Accepted Answer

73,000 varieties approximately

Answer

73,000

Answer

73,000 varieties

Answer

73,000 days

Question 3

According to the 2011 Census, Chintamani had 75,000 people. How much less is this than one lakh?

Accepted Answer

25,000

Answer

20,000

Answer

30,000

Answer

35,000

Question 4

The estimated population of Chintamani in 2024 is 106,000. How much more is this than one lakh?

Accepted Answer

4,000

Answer

5,000

Answer

6,000

Answer

7,000

Question 5

Which floor count approximates Somu’s building height if Somu is 1 m tall and each floor is four times his height, given the building height is plotted up to 500 m?

Accepted Answer

25 floors

Answer

20 floors

Answer

30 floors

Answer

35 floors

Question 6

Write 3,00,600 in words using the Indian system.

Accepted Answer

Three lakh six hundred

Answer

Three lakh sixty hundred

Answer

Three lakh six thousand

Answer

Three lakh zero six hundred

Question 7

Convert ‘one lakh twenty three thousand four hundred and fifty six’ into digits (Indian system).

Accepted Answer

1,23,456

Answer

12,34,56

Answer

1,234,56

Answer

1,23,545

Question 8

How many times press the +1000 button to reach 90,000 on the Thoughtful Thousands calculator?

Accepted Answer

90 times

Answer

100 times

Answer

90,000 times

Answer

9 times

Question 9

On the Tedious Tens calculator, how many presses to show 780?

Accepted Answer

78

Answer

7.8

Answer

780

Answer

7800

Question 10

Find two different expressions to get 5072 using Creative Chitti’s buttons.

Accepted Answer

(50×100)+(7×10)+(2×1) and (3×1000)+(20×100)+(72×1)

Answer

(5×1000)+(72×1) and (507×10)+(2×1)

Answer

(5072×1) and (0)

Answer

Both expressions are the same

Question 11

What is the smallest number of button presses to get 8300 on Systematic Sippy?

Accepted Answer

13 presses (+1000×8, +100×3)

Answer

830 presses

Answer

83 presses

Answer

8 presses

Question 12

How many zeros are there in one crore when written in Indian format?

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 13

Read 4050678 in Indian place value notation and write its name in the American system.

Accepted Answer

Four million fifty thousand six hundred seventy-eight

Answer

Forty lakh fifty thousand six hundred seventy-eight

Answer

Four million fifty lakh sixty thousand

Answer

None of the above

Question 14

Which estimate is closer for 463,128 + 419,682: near 800,000 or near 900,000?

Accepted Answer

Near 800,000

Answer

Near 900,000

Answer

Exact 883,000

Answer

Neither

Question 15

Convert 14,63,128 – 4,90,020 exactly.

Accepted Answer

9,63,108

Answer

9,73,108

Answer

9,73,008

Answer

9,63,008

Question 16

Which city’s population almost doubled between 2001 and 2011 in the given table?

Accepted Answer

Surat

Answer

Bengaluru

Answer

Kolkata

Answer

Pune

Question 17

What pattern is observed when multiplying 1111 × 1111?

Accepted Answer

1234321

Answer

1111111

Answer

1110000

Answer

Wrong pattern

Question 18

Calculate 116 × 5 quickly using the shortcut shown.

Accepted Answer

580

Answer

600

Answer

590

Answer

570

Question 19

Multiply 824 × 25 using division shortcut.

Accepted Answer

20,600

Answer

20,800

Answer

21,000

Answer

20,200

Question 20

What is 1250 × 380? (fact about Purandaradāsa)

Accepted Answer

475,000

Answer

476,000

Answer

475,500

Answer

475,100

Mathematics Class 7

Chapter 1

Chapter 2

Chapter 5

Chapter 7

Chapter 8

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