scientific notation june 4, 2015. “do not mistake activity with achievement.”
TRANSCRIPT
Objectives• Change the form of numbers into
scientific notation• Change scientific notation into
standard notation• Identify the millions, billions,
trillions… places
For five minutes, change the following into scientific notation.
• 20,000• 100,500,000• 0.00000021• 0.00000173• 120537 x 108
• 0.00002 x 1017
• 0.00000001 x 10-11
• 123 x 0.0011 x 109
Find the result.
1. (1.31 x 105) + (2.29 x 106) – (0.113 x 107)
First, change them into the same base 10. Second, FACTOR same base 10 and exponent.
Page 15
• 9,500,000 people means: • 9 million, 5 hundred thousand• 9.5 x 106
• 4,000,000,000 means:• 4 billion• 4 x 109
Read conveniently
• 22.4 x 109
• twenty-two point four billion• 127 x 1010
• 1.27 x 1012 One point twenty-seven trillion
• 3 x 1011
• 300 x 109 three hundred billion
• 385 x 1012
• Three hundred eighty-five trillion• 7914 x 1013
• 79.14 x 1015 seventy-nine point fourteen quadrillion
• 19 x 1014
• 1.9 x 1015 one point 9 quadrillion
• 123.5 billion baht plus 800 million baht equals how many billion baht?
• First, change to standard form (notation).
• Second, add them.• Then, change them into short word
form.
More than and less than
• Page 16-17• 12.2 billion baht is more than 11.9
billion baht by how many million baht?
• 12,200,000,000 = 11,900,000,000 + x
• 170,000,000,000 = 1,000,000,000,000 - x