Mathematics • Practice
Practice Set 3.1
1
Write the following numbers in words.
(i)
49,38,67,521
(ii)
28,41,57,649
(iii)
2,37,50,145
(iv)
6,79,81,049
Answers
Ans (i)
✓
49,38,67,521
Forty nine crore thirty eight lakh sixty seven
thousand five hundred twenty one.
Ans (ii)
✓
28,41,57,649
Twenty eight crore forty one lakh fifty seven
thousand six hundred forty nine.
Ans (iii)
✓
2,37,50,145
Two crore thirty seven lakh fifty thousand
one hundred forty five.
Ans (iv)
✓
6,79,81,049
Six crore seventy nine lakh eighty one thousand
forty nine.
2
Write the appropriate symbols in the box
<, =, >.
(i)
59,21,492
64,79,426
(ii)
7,579
0
(iii)
48,579
48,579
(iv)
0
700
Answers
Ans (i)
✓
59,21,492
<
64,79,426
Ans (ii)
✓
7,579
>
0
Ans (iii)
✓
48,579
=
48,579
Ans (iv)
✓
0
<
700
3
Solve.
(i)
95,754 − 38,254 = ?
(ii)
85,39,652 + 53,27,541 = ?
Solutions
Ans (i)
✓
Subtraction
95,754 − 38,254 =
57,500
Ans (ii)
✓
Addition
85,39,652 + 53,27,541 =
1,38,67,193
4
The expenditure on school nutrition in the month of June
was ₹ 87,000. If it became ₹ 1,69,000 in the month of July,
what was the total expenditure for the months of June and July?
How much more was the expenditure in the month of July than in June?
Solution
June expenditure + July expenditure
= ₹ 87,000 + ₹ 1,69,000
= ₹ 2,56,000
Expenditure difference: July expenditure − June expenditure
= ₹ 1,69,000 − ₹ 87,000
= ₹ 82,000
Ans.
Total expenditure of June and July = ₹ 2,56,000.
More expenditure in July than June = ₹ 82,000.
5
In the financial year, an organization deposited
₹ 9,25,498 in income tax in the month of February and
₹ 11,49,505 in income tax in the month of March with the
Income Tax Department. How much total income tax was
deposited in the two months?
Solution
Income tax in February + Income tax in March
= ₹ 9,25,498 + ₹ 11,49,505
= ₹ 20,75,003
Ans.
Total income tax deposited in two months is
₹ 20,75,003.