Place value Ordering numbers including decimals and negative

Place value Ordering numbers including decimals and negative numbers

Place value The position of a digit in a number gives the value of that digit. The further left the digit the greater its value. What is this number? Millions Tens of Thousands Hundreds Thousands Units Tenths Decimal Point Thousandths Hundredths 9 8 7 6 5 4 3. 3 2 1

Questions What is the value of the selected digit? Write your answer using both numbers and words. Use only numbers for the last three questions a) 5730. 92 b) 91843. 48 c) 74083. 96 d) 8521. 63 e) 61293. 475 f) 70045. 293 g) 2636897. 831 h) 57166. 02 i) 4235. 8 j) 295. 3865 k) 48738. 2 l) 82747. 1 m) 1. 48935 n) 234. 23558 o) 32453. 24457

Answers What is the value of the selected digit? Write your answer using both numbers and words. Use only numbers for the last three questions. a) 700 Seven hundred d) 0. 6 Six tenths g) 2000000 Two million j) 0. 08 Eight hundredths m) 0. 0003 b) 1000 One thousand e) 60000 Sixty thousand h) 7000 Seven thousand k) 40000 Forty thousand n) 0. 0005 c) 80 Eighty f) 0. 003 Three thousandths i) 200 Two hundred l) 7 Seven o) 0. 00007

Ordering Decimals 2 ba 2: put decimal numbers in order using place value.

Ordering decimals It is easier to put decimals in order if we have the same number of digits after the decimal point. Example 1: put these decimals in order of size from highest to lowest. 0. 12 0. 302 0. 5 0. 06 Step 1 Look at the decimals to find which one has the most number of digits after the decimal point. 0. 12 0. 302 0. 5 0. 06 Step 2 Add zeros to the other decimals so that they all have this number of digits after the decimal point. 0. 120 0. 302 0. 500 0. 060 Step 3 Put the numbers in order of size. 0. 500 0. 302 0. 120 0. 060

Questions Put these decimals in order from lowest to highest: a) 4. 6 4. 06 4. 26 4. 16 b) 7. 28 c) 5. 06 5. 62 5. 26 d) 10. 94 10. 24 10. 04 10. 4 8. 53 8. 13 8. 93 8. 9 0. 42 0. 24 0. 2 0. 04 e) f) 7. 8 7. 08 Challenge: Use the numbers 1, 2 and 3 to make five decimals numbers. Then order them from smallest to largest. E. g. 1. 32, 2. 31 7. 18

Answers Put these decimals in order from lowest to highest: a) 4. 06 4. 16 4. 26 4. 6 b) 7. 08 c) 5. 06 5. 26 5. 62 d) 10. 04 10. 24 8. 13 8. 53 8. 93 0. 04 0. 24 0. 42 e) f) 7. 18 7. 28 7. 8 10. 4 10. 94 Challenge: Use the numbers 1, 2 and 3 to make five decimals numbers. Then order them from smallest to largest. E. g. 1. 32, 2. 31

Questions Put these decimals in order from highest to lowest: a) 6. 4 6. 04 6. 41 61. 4 6. 14 b) 3. 27 32. 7 3. 07 3. 72 27. 3 16. 04 1. 64 10. 6 16. 4 1. 46 42. 32 42. 04 42. 3 42. 23 40. 32 c) d) Challenge: Can you order to following measurements in ascending order. 124 cm 0. 75 m 65 mm 1. 4 m 1. 1 km

Answers Put these decimals in order from highest to lowest: a) 61. 4 6. 41 6. 4 6. 14 6. 04 b) 32. 7 27. 3 3. 72 3. 27 3. 07 16. 4 16. 04 10. 6 1. 64 1. 46 42. 32 42. 3 42. 23 42. 04 40. 32 c) d) Challenge: Can you order to following measurements in ascending order. 124 cm 0. 75 m 65 mm 1. 4 m 1. 1 km