Do Now 1 A 150 pound person contains
- Slides: 7
Do Now 1. A 150 -pound person contains approximately 0. 00024 pounds of the element cobalt. Express this weight of cobalt in scientific notation. A. 0. 24 X 10 -3 B. 24 X 10 -4 C. 2. 4 X 104 D. 2. 4 X 10 -3 E. 2. 4 X 10 -4 2. Harold had the following test grades during the marking period: 97, 69, 98. What score does Harold need on his 4 th test to get a 90 for his class average?
Do Now 1. A A. B. C. D. E. 150 -pound person contains approximately 0. 00024 pounds of the element cobalt. Express this weight of cobalt in scientific notation. 0. 24 X 10 -3 24 X 10 -4 2. 4 X 10 -3 2. 4 X 10 -4 2. Harold had the following test grades during the marking period: 97, 69, 98. What score does Harold need on his 4 th test to get a 90 for his class average?
Do Now 1. A A. B. C. D. E. 150 -pound person contains approximately 0. 00024 pounds of the element cobalt. Express this weight of cobalt in scientific notation. 0. 24 X 10 -3 24 X 10 -4 2. 4 X 10 -3 2. 4 X 10 -4 2. Harold had the following test grades during the marking period: 97, 69, 98. What score does Harold need on his 4 th test to get a 90 for his class average? ANSWER: 96
Dividing Decimals Key Points: We do NOT line up the decimals! Move the decimal point on the OUTSIDE number as many times needed to the right to make it a whole number Move the decimal point on the INSIDE as many times as you did on the outside! THIS MEANS IT MAY NOT BE A WHOLE NUMBER OR YOU MAY HAVE TO ADD ZEROS!!
Dividing Decimals Ex. 4. 55 ÷. 5 =
Dividing Decimals Ex. 4. 55 ÷. 5 = 9. 1 Ex. 124. 36 ÷. 04 =
Dividing Decimals Ex. 4. 55 ÷. 5 = 9. 1 Ex. 124. 36 ÷. 04 = 3, 109
