instruction: I would like to use the oppia app to help my child with their math homework, thus i want to view chapter on understanding naming numbers 

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      text: "Numbers can be expressed in numerals or in words. Let\'s learn how to use place values to write a number in words.\n\n(If you can\'t remember what the place names and values are, take a look at this concept card first!)\n\n \n\nWriting Numbers from 1 to 9\n\nLet\'s learn how to write numbers from 1 to 9. Learning these will make the rest of the lesson easier. Try to remember these words:\n\nA table with two columns, mapping words to digits: One (1), Two (2), Three (3), Four (4), Five (5), Six (6), Seven (7), Eight (8), Nine (9). \n\n \n\n \n\nWriting Numbers from 10 to 19\n\nHere are the names of the numbers from 10 to 19:\n\nTable mapping words to numbers: Ten (10), Eleven (11), Twelve (12), Thirteen (13), Fourteen (14), Fifteen (15), Sixteen (16), Seventeen (17), Eighteen (18), Nineteen (19). \n\n \n\nApart from 10, 11 and 12, notice that all the other numbers (from 13 to 19) follow the same pattern. Why? Remember that the sum of digit values gives us the original number, so:\n\n13 = 10 + 3 = 3 + 10 → \"three and ten\" → thirteen\n14 = 10 + 4 = 4 + 10 → \"four and ten\" → fourteen\n15 = 10 + 5 = 5 + 10 → \"five and ten\" → fifteen\n16 = 10 + 6 = 6 + 10 → \"six and ten\" → sixteen\n\nand so on.\n\n \n\nWriting numbers from 20 to 90\n\nFirst, let\'s learn how to count in tens by writing 20, 30, 40, and so on all the way up to 90. You can recognize these numbers because they end in \"ty\").\n\nTable mapping words to numbers: Twenty (20), Thirty (30), Forty (40), Fifty (50), Sixty (60), Seventy (70), Eighty (80), Ninety (90). \n\n \n\nNow, we can combine words to write more numbers.\n\nExample: Let\'s see how it works for the number 25.\n\n25 is written with two numbers: “2”, ”5”.\n5 is in the ones place, so its digit value is 5. Write this as five.\n2 is in the tens place, so its digit value is 20. Write this as twenty.\nFinally, write the two parts together: twenty-five. We use the “-” sign between them.\n\n \n\nWriting Numbers from 100 to 999\n\nFirst, let\'s name the hundreds. This is easy if you remember the basics. Just write the number as usual and add \"hundred\":\n\n100 → one hundred\n200 → two hundred\n300 → three hundred (and so on)\n\nThen, to write any number from 100 to 999, just write the hundreds place, then the rest of the number. You don\'t need to write \"and\" or anything else between them. Here are some examples:\n\n846 → eight hundred forty-six\n505 → five hundred five\n250 → two hundred fifty\n999 → nine hundred ninety-nine\n\n \n\nWriting Long Numbers\n\nFirst, when we write numbers with 4 or more digits, we need to break up the number by adding commas. Start from the right side of the number, at the ones place. Count three digits to the left, then add a comma. (For larger numbers, you might need to add more commas, but where you put them depends on which country and numeric system you\'re using.)\n\n\t \n\t \n\nExample: We can write 67350 as 67,350.\n\n\t\n\nWrite the last two digits. Look at the two digits at the end of the number. This part is just like writing a normal two-digit number.\n\n\t \n\t \n\nExample: 67,350 looks hard, but don\'t worry. Start with just the 50 at the end. Write this as \"fifty\".\n\n\t\n\nWrite the hundreds place. The next digit is the hundreds place. This is an easy one. Just write the number in that place, then add the word \"hundred.\" Write this in front of your number.\n\n\t \n\t \n\nExample: In 67,350, the 3 is in the hundreds place. Write this as \"three hundred\". Now, we have \"three hundred fifty\".\n\n\t\n\nLook at the remaining numbers. You just wrote the hundreds, tens, and ones place. The next two numbers are part of the thousands \"chunk.\" These are the ten thousands and one thousands. Write these the same way, then add the word \"thousand.\"\n\n\t \n\t \n\nExample: In 67,350, the ”67” is the thousands chunk.\n\n\t \n\nWrite the 6 as \"sixty\", because it is in the ten thousands place. Write the 7 as \"seven\", because it is in the one thousands place. Then, add \"thousand\" at the end.\n\n\t \n\nSo, the whole chunk is written as \"sixty-seven thousand\".\n\n\t \n\nSo, we can finish writing the full number as \"sixty-seven thousand, three hundred fifty\".\n\n\t\nThe number 67,350 written in words: \\Sixty-seven thousand, three hundred fifty\\"
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