Math primary 4 numbers up to 100 000
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The document provides examples of writing and comparing numbers up to 100,000. It explains how to identify the place value of each digit in a number. Examples are given of arranging numbers in ascending and descending order and using digits to form the greatest and smallest 5-digit numbers. The document also demonstrates counting up or down in sequences by specific amounts. Finally, it shows examples of completing number patterns by identifying the rule.
Math primary 4 numbers up to 100 000
- 1. Number up to 100.000 Ten- Thousands Hundreds Tens Ones thousands 1 2 5 7 4 I say : Twelve thousand, five hundred and seventy four I write : 12.574
- 2. Number up to 100.000 Ten- Thousands Hundreds Tens Ones thousands 2 5 4 0 9 I say : Twenty-five thousand, four hundred and nine I write : 25.409
- 3. Number up to 100.000 Ten- Thousands Hundreds Tens Ones thousands 3 1 0 2 7 I say : Thirty-one thousand and twenty seven I write : 31.027
- 4. In 32.145 The digit 3 stands for 3 ten thousands and has a value of 30.000 The digit 2 stands for 2 thousands and has a value of 2.000 The digit 1 stands for 1 hundreds and has a value of 100 The digit 4 stands for 4 tens and has a value of 40 The digit 5 stands for 5 ones and has a value of 5
- 5. In 29.306 The digit 3 stands for 3 hundreds and has a value of 300 The digit 0 stands for 0 tens and has a value of 0 The digit 6 stands for 6 ones and has a value of 6
- 6. Compare number up to 100.000 34.506 < 44.506 3 ten thousands is smaller than 4 ten thousands Therefore, 34.506 is smaller than 44.506 This means 44.506 is greater than 34.506
- 7. Compare number up to 100.000 23.646 > 23.546 Ten thousands and thousands have the same digit 6 hundreds is greater than 5 hundreds Therefore, 23.646 is greater than 23.546 This means 23.546 is smaller than 23.646
- 8. For Remember ! We always start comparing the ten thousands, then the thousands, the hundreds, followed by the tens and finally the ones
- 9. 79.409 79.049 97.049 Arrange these numbers in ascending order! The smallest The greatest 79.049 79.409 97.049
- 10. 23.233 23.323 23.332 Arrange these numbers in descending order! The greatest The smallest 23.332 23.323 23.233
- 11. Use the following digits to form 5-digits number 2 1 5 6 8 The greatest number 86 . 521 The smallest number 1 2 . 568
- 12. Use the following digits to form 5-digits number 0 2 4 7 9 The greatest number 97. 420 The smallest number 20. 479
- 13. Do the following questions! 1. Write the numbers a. Seventeen thousand, two hundred and sixty- eight b. Seventy thousand, nine hundred and eleven c. Ninety-nine thousand and nine 2. Write these numbers in words a. 25.515 b. 30.303 c. 88.018 3. Arrange these numbers in ascending order a. 43.344 - 34.443 - 44.343 b. 56.566 - 56.665 - 56.656 4. Arrange these numbers in descending order a. 77.447 - 74.774 - 47.774 b. 10.110 - 10.010 - 10.101
- 14. Count in sequence Count up by 100 10.600 10.500 10.400 10.300 10.200 10.100 10.000
- 15. Count in sequence 28.000 Count up by 500 27.500 27.000 26.500 26.000 25.500 25.000
- 16. Count in sequence Count up by 28.200 1.200 27.000 25.800 24.600 23.400 22.200 21.000
- 17. Count in sequence Count up by 40.000 2.500 37.500 35.000 32.500 30.000 27.500 25.000
- 18. Count in sequence 27.100 Count down 26.900 by 200 26.700 26.500 26.300 26.100 25.900
- 19. Count in sequence 47.100 Count down 46.100 by 1.000 45.100 44.100 43.100 42.100 41.100
- 20. Count in sequence 47.100 Count down 40.100 by 1.500 24.100 22.600 21.100 19.600 18.100
- 21. Complete Number Pattern What is the rule ? The rule is + 1.200 13.300 14.500 15.700 16.900 18.100
- 22. Complete Number Pattern The rule is - 2.000 74.100 72.100 70.100 68.100 66.100
- 23. Complete Number Pattern The rule is x 2 111 222 444 888 1.776
- 24. Complete Number Pattern The rule is : 10 10.000 1.000 100 10 1
- 25. What are the missing numbers in these patterns? ? 3.000 7.000 2.500 500 ?
- 26. What are the missing numbers in these patterns? ? 150 500 3 50 ?