1. Name the three periods into which a 6-digit number is grouped.
Ans: Three Periods are Ones, Thousands and Lakhs
2. Mention the places in Ones and Thousands periods.
Ans:
| Periods | Places |
| Ones | Ones,Tens, Hundreds |
| Thousands | Thousands,Ten Thousands |
3. Rewrite the following numerals using commas between periods.
Ans:
| (a) 91409 | 91,409 |
| (b) 113625 | 1,13,625 |
| (c) 824300 | 8,24,300 |
| (d) 98461 | 98,461 |
| (e) 310008 | 3,10,008 |
| (f) 444444 | 4,44,444 |
| (g) 100000 | 1,00,000 |
| (h) 505001 | 5,05,001 |
4. Write the period, place and place value of the encircled digit in each numerals
Ans:
| S.No | Periods | Place | Place Value |
| (a) 341968 | Lakhs | Lakh | 300000 |
| (b) 26048 | Ones | Ones | 8 |
| (c)708432 | Ones | Hundred | 400 |
| (d)800432 | Thousands | Thousands | 0 |
| (e)30049 | Ones | Tens | 40 |
| (f)666666 | Thousands | Thousands | 6000 |
| (g)801023 | Ones | Ones | 3 |
| (h)438620 | Lakhs | Lakhs | 400000 |
5.Write the numerals using commas between periods.
| (a) Sixty two thousand three hundred. | 62300 |
| (b) Thirty thousand one. | 32000 |
| (c) Two lakh one thousand three. | 201003 |
| (d) Six lakh twenty nine thousand sixty. | 629060 |
| (e) Fifty thousand fifty. | 50050 |
| (f) Nine lakh nineteen thousand nineteen. | 919019 |
| (g) Fourteen thousand thirty one. | 14031 |
| (h) Eight lakh one thousand three hundred one. | 801301 |
6. Write the number names for the following numerals.
(a) 75,831 =Seventy Five Thousand Eight hundred thirty one
(b) 3,65,186= Three Lakh Sixty Five Thousand One Hundred Eighty Six
(c) 1,00,301 = One Lakh Three Hundred One
(d) 95,000 =Ninety Five Thousand
(e) 3,08,751 =Three Lakh Eight Thousand Seven Hundred Fifty One
(f) 7,07,707 =Seven Lakh Seven Thousand Seven Hundred Seven
(g) 6,60,660 =Six Lakh Sixty Thousand Six Hundred Sixty
(h) 40,004=Forty Thousand Four