Maths 1 Mark Question

Nearest ten is 3600.

2 × 10000000 + 5 × 100000 + 7 × 1000 + 9 × 100 + 5 × 1 = 2,05,07,905

Nearest hundred is 800.

7,07,075 = Seven lakh seven thousand seventy-five.

The estimated quotient for 83 ÷ 17 is approximately equal to 80 ÷ 20 = 8 ÷ 2 = 4.

70000

The number is 11010101 - 2635967 = 8374134

37684955 + 3615045 = 41300000
The number is 41300000.

Two hundred thirty-four million one hundred fifty thousand three hundred nineteen.

Twenty lakh ten thousand eitht = 2010008.

87 ÷ 28 is approximately equal to 90 ÷ 30 = 3.

1 crore = 100 lakh.

False.
Solution:
10 lakhs = 1 million.

Nearest hundred is 900.

The screw mill produced 6985 × 358 = 2500630
2500630 screws were produced in 358 days.

The length of the remaining piece 5m 00cm - 2m 85cm = 2m 15cm.
The length of the remaining piece is 2m 15cm.

9,10,10,510 = (9 × 10000000) + (1 × 1000000) + (1 × 10000) + (5 × 100) + (1 × 10)

Six crore five lakh fifty-seven = 60500057.

15,768 = (1 × 10000) + (5 × 1000) + (7 × 100) + (6 × 10) + (8 × 1)

Nearest thousand is 130.
Solution:
The total number of balls in the both boxes is 54 + 79 = 133 balls.

Nearest ten is 1800.

Nearest hundred is 98200.

Nearest ten is 3200.

Nearest hundred is 600.

Nearest ten is 140.

Nearest ten is 640.

Nearest ten is 820.

Nearest ten is 60.

1 crore = 10 million.

Fifty-four thousand seventy-three = 54073.

The length of each piece 10m ÷ 8 = 1m 25cm.

200000

Nearest hundred is 30000.

Nearest ten is 120.

Nearest thousand is 1000.

Nearest hundred is 2500.

Nearest thousand is 28000.

Nearest hundred is 43100.

Nearest hundred is 40000.

Nearest ten is 600.

Nearest hundred is 100000.

30000

34,20,019 = Thirty-four lakh twenty thousand nineteen.

6,18,05,008 = Six crore eighteen lakh five thousand eight.

The cost of each such flat 68251500 ÷ 36 = 1895875.
The cost of each such flat 1895875.

Nearest thousand is 8000.

Nearest ten is 40.

The number just before 10000000 is 10000000 - 1 = 9999999.

868 ÷ 38 is approximately equal to 900 ÷ 40 or 90 ÷ 4, which is approximately equal to 23.

858 ÷ 39 is approximately equal to 900 ÷ 40 or 90 ÷ 4, which is approximately equal to 23.

Sixteen crore six lakh twenty-three thousand seven hundred eight.

28000

Nearest hundred is 400.

6 × 10000 + 2 × 1000 + 5 × 100 + 8 × 10 + 1 = 62,584

Nearest thousand is 5000.

19,09,09,900 = Nineteen crore nine lakh nine thousand nine hundred.

The estimated quotient of 275 ÷ 25 is approximately equal to 300 ÷ 30 = 30 ÷ 3 = 10.

3 × 1000000 + 4 × 100000 + 6 × 1000 + 5 × 100 + 7 × 1 = 34,06,507

Nearest thousand is 58000.

Fifteen crore fifty lakh twenty thousand sixty-eight = 155020068.

The number just before 9900000 is 9900000 - 1 = 9899999.

Nearest ten thousand is 30000.

The smallest number formed by using each of the given digits (i.e, 3,1,0,5 and 7) only once is 10357.

Fourteen crore twenty-three lakh eight thousand nine hundred fifteen.

5 × 100000 + 8 × 10000 + 1 × 1000 + 6 × 100 + 2 × 10 + 3 × 1 = 5,81,623

13246510 + 4658642 = 8587868

90000

The other number is 10750308 - 8967519 = 1782789

The smallest 4-digit number with four different digits is 1023.

Nearest ten is 110.

Nearest hundred is 90000.

Nearest ten is 30.

Nearest hundred is 7700.

The estimated quotient of 193 ÷ 24 is approximately equal to 200 ÷ 20 = 20 ÷ 2 = 10.

Three lakh two thousand five hundred six = 302506.

Nearest hundred is 80000.

Nearest ten thousand is 270000.

Nearest hundred is 40000.

Twelve crore twelve lakh twelve thousand twelve = 121212012.

Nearest thousand is 49000.

Nearest hundred is 39500.

6,06,06,006 = (6 × 10000000) + (6 × 100000) + (6 × 1000) + (6 × 1)

20000

Nearest ten thousand is 20000.

One lakh (1,00,000) is equal to one hundred thousand (100 × 1000).
Thus, one hundred thousands make a lakh.

The largest number formed by using each of the given digits only once is 964320.

The estimated quotient of 725 ÷ 23 is approximately equal to 700 ÷ 20 = 70 ÷ 2 = 35.

6,15,30,807 = Six crore fifteen lakh thirty thousand eight hundred seven.

Nearest ten is 2400.

3,08,927 = (3 × 100000) + (8 × 1000) + (9 × 100) + (2 × 10) + (7 × 1)

Two crore two lakh two thousand two hundred two = 20202202.

32000

The estimated quotient of 633 ÷ 33 is approximately equal to 600 ÷ 30 = 60 ÷ 3 = 20.

Nearest hundred is 4900.

Nearest hundred is 6500.

The 3-digit numbers formed by 2, 3 and 4 by taking each digit only once are 234, 324, 243, 342, 423 and 432.

Such scooters cost 367725 × 487 = 17885075
17885075 will 487 such scooters cost.

Nearest ten is 90.

Nearest hundred is 500.

Nearest ten is 2500.

564 when estimated to the nearest hundred is 600.

The number just after 9547999 is 9547999 + 1 = 9548000.

5,36,18,493 = (5 × 10000000) + (3 × 1000000) + (6 × 100000) + (1 × 10000) + (8 × 1000) + (4 × 100) + (9 × 10) + (3 × 1)

50000

Eighty million sixty thousand four hundred nine.

Nearest ten is 150.

729 ÷ 29 is approximately equal to 700 ÷ 30 or 70 ÷ 3, which is approximately equal to 23.

Nearest ten thousand is 30000.

Nearest ten is 16380.

24,05,609 = (2 × 1000000) + (4 × 100000) + (5 × 1000) + (6 × 100) + (9 × 1)

Periods	Crores	Lakhs	Thousands	Hundreds	Tens	Ones
Digits	8	63	24	8	0	5

Using commas, we write the given number as 8,63,24,805.

True.
Solution:
In Roman numerals, V, L and D are never repeated and never subtracted.

Nearest ten is 170.

True.
Solution:
Greatest five-digit number = 99999
Successor of 99999 = 99999 + 1 = 100000

6,60,60,060 = Six crore sixty lakh sixty thousand sixty.

Nearest ten is 260.

Nine thousand eighteen = 9018.

True.
Solution:
The number is 46,530. Its digit at the tens place is 3 < 5.
So, the number 46,530 is rounded off to the nearest hundred as 46,500.

3572014 < 10235401
Solution:
We know that a 7-digit number is always less than an 8-digit number.
Since 3572014 is a 7-digit number and 10235401 is an 8-digit number, 3572014 is less than 10235401.

10000000 - 5643879 = 4356121

Nearest hundred is 800.

1003467 > 987965
Solution:
We know that a 7-digit number is always greater than a 6-digit number.
Since 1003467 is a 7-digit number and 987965 is a 6-digit number, 1003467 is greater than 987965.

Nearest thousand is 8000.

Nearest ten is 630.

The estimated quotient of 75 ÷ 23 is approximately equal to 80 ÷ 20 = 8 ÷ 2 = 4.

90000

Nearest thousand is 17000.

Nearest hundred is 1300.

One crore (1,00,00,000) is equal to one hundred lakh (10,000 × 1,000).
Thus, 10,000 thousands make a crore.

Nearest ten is 80.

Nearest ten is 3870.

27596381 > 7965412
Solution:
We know that an 8-digit number is always greater than a 7-digit number.
Since 7965412 is a 7-digit number and 27596381 is an 8-digit number, 27596381 is greater than 7965412.

3,05,09,012 = Three crore five lakh nine thousand twelve.

5,10,03,604 = Five crore ten lakh three thousand six hundred four.

63,005 = Sixty-three thousand five.