Subtracting Scientific Notation
(9.87 x 107) - (7.42 x 107)
2.45 x 107
When multiplying numbers in scientific notation, what do you do with the exponents?
Add them
When dividing with scientific notation, what do you do with the exponents?
Subtract them
How many numbers can be in front of the decimal if the number is in correct scientific notation?
One
During World War I, the British army was mostly dependent upon which animal?
Horses
(7.2 x 105) - (5.1 x 105)
2.1 x 105
(2.0 × 105) (3.0 ×103)
6.0 × 108
(8.4 x 109)÷(4 x 107)
2.1 x 102
What is the value of 6 in :
5762
60
(Science) What do you call the substances that interact with each other?
(You can find it at the left side of the arrow in a chemical equation)
Reactants
Find the difference:
(6.4 x 10-6) - (5.7 x 10-7)
5.83 x 10-6
Solve: (1.08 × 10-3)x(2.54 × 10-3)
2.7432 × 10-6
(7.0 x 102) / (2.1 x 10-7)
3.33... x 109
Convert .67 into a fraction.
67/100
What do you call a traditional Filipino toy attached to a long rope and that was once used as a hunting weapon?
The modern version was invented by a Filipino American and named from the Filipino dialect Ilocano that means “come back.”
Yo-yo
What is the difference between the mass of Earth (5.98 x 10^24 kg) and the mass of Mars (6.42 x 10^23 kg)?
5.338 x 1024
Identify the error made in writing the product in scientific notation.
(3x102)(2.7x103)
=8.1x106
*Exponents were multiplied instead of adding them
(Correct Answer: 8.1x105)
(2.7x104)/(9x103)
0.3x101 = 3x100
=3x1=3
Convert 15/4 to a mixed number.
3 3/4
Which Grade 8 student (in your class) likes to be an actress/actor?
Emily
Casey and Coco invested a total of P10,000 to purchase some school supplies for business. Casey put up P5,500 of the investment. What is the difference in investments between Casey and Coco in scientific notation?
1.0 103
One cubic millimeter (mm3) of Mr. Laulo’s blood contains about 5,000,000 red blood cells. There are about 4,900,000 cubic millimeters (mm3) of blood in his body. Determine approximately how many red blood cells Mr. Laulo has in his body?
(5x106)(4.9x106)
=24.5x1012
=2.45x1013
California has approximately 4 x 107 people living in it. United States has around 3.0 x 108. About how many times greater is the population of the United States than the population of California?
0.75 x 10^1 = 7.5 x 10^0 = 7.5 x 1 = 7.5
The population of the United States is 7.5 times greater than the population of California
Eight out of 100 students at Tim's school are vegetarians. Which of the following decimals represents this ratio?
0.08
Her/his greatest pet peeve is screaming little children.
(Name your classmate)
Varvara