GRADE IV NUMBERS FROM 100 001 THROUGH MILLIONS/BILLIONS Objective: Identify numbers from 100 001 through millions/billions. Review Pick out all the numbers less than 100 000 from the set of numbers posted on the houses and write them on your paper. A 45 489 8 432 6 789 10 100 436 132 B 634 312 99 999 7 634 436 849 80 000 C 123 421 138 422 89 432 24 382 94 389 Check your answers using the key to correction. If your score is 8-10 you can now proceed to do this module. If you get 7 correct answers or below, review first the past lesson. Study and Learn A. Read the news item. Traffic in Metro Manila is heavy because nearly one-half of the 2 904 487 vehicles in the country are registered here. 1. 2. 3. In the news item above, the given number is 2 904 487. The number is read as 2 million, 904 thousand, 487. There are seven digits in the number. 1 B. Study the place value chart with numbers in the thousands, millions, and billions. PERIODS Billions H 6 T 9 Millions Thousands O H T O 1 7 3 2 5 1 0 H 2 3 7 T 6 6 2 O 8 2 8 Units H 4 5 4 T 1 2 0 O 3 8 0 1. How many digits are there in one thousand? one million? one billion? (4, 7 & 10 digits) 2. How many digits are there in ten thousand, ten million, and ten billion? (5, 8 & 11 digits) 3. How many digits are there in hundred thousand? hundred million? hundred billion? (6, 9 & 12 digits) 4. How many periods are there in thousands? in millions? in billions? (2, 3 & 4 periods) 5. How many place values are there in every period? (3 place values) 6. What are they? (ones, tens, and thousands) Remember, we identify numerals by the number of their digits. Try These A. Put a () if the highest place value of the number is in thousands period, a cross (x) if in millions period and (0) if in billions period. Number 1 is done for you. __X___ 1) 6 386 796 _______ 2) 24 412 _______ 3) 214 610 241 103 _______ 4) 107 901 _______ 5) 1 263 ______ 6) ______ 7) ______ 8) ______ 9) ______10) 2 76 998 289 162 104 267 211 1 246 211 426 20 412 719 9 606 B. Identify the place value of the given digits from the numbers 870 905 412 and 663. 1) 2) 3) 4) 5) 7 _____ 4_____ 9 _____ 5 _____ 3 _____ C. Write T if the left most period of the number is in thousands, M if in millions, and B if in billions. Number 1 is done for you. __M__ 1) _____ 2) _____ 3) _____ 4) _____ 5) 2 461 245 305 112 461 272 1 002 26 412 313 721 10 413 315 Wrap Up How do you identify a number if it is in thousands, millions or billions? Thousands have 2 periods with 4, 5 or 6 digits. Millions have 3 periods with 7, 8 or 9 digits. Billions have 4 periods with 10, 11 or 12 digits. On Your Own A. Write T if the number is in thousands, M if in millions, B if in billions: _____ 1. _____ 2. _____ 3. _____ 4. _____ 5. 6 014 597 145 793 001 206 010 371 148 52 758 137 425 010 3 B. Classify the numbers below according to the period of the left-most digit by placing them under thousands, millions, or billions. 15 086 912 5 427 17 196 741 014 64 185 451 981 643 212 002 7 159 082 544 9 273 050 35 421 889 120 357 296 243 741 019 8 095 403 012 Billions Millions Thousands 1. 2. 3. 4. 1. 2. 3. 4. 1. 2. 3. 4. Check your answers using the answer key. 14-17 10-13 0-9 - Excellent! You may now proceed to the next lesson. You need to review the processes missed. You need to repeat the whole process. Ask your teacher or elder to help you. 4