Standard Form and Scientific Notation
When converting to scientific notation, if you move the decimal to the left, the exponent is ____;if you move the decimal to the right, the exponent is ____.
positive, negative
To add numbers in scientific notation, they must have what?
A common power of 10
What is the last step when adding, subtracting, multiplying, or dividing in scientific notation?
Check for proper scientific notation.
When multiplying, you ___ the exponents and when dividing, you ___ the exponents.
add, subtract
You use positive exponents for___, an example is ____.
large numbers, 234,384,342
Express 18 in scientific notation
1.8 x 102
Solve
2 x 103 + 3 x 103
5 x 103
Solve
7 x 103 − 2 × 103
5 x 103
Solve
(4×104)×(3.5×103)
1.4 x 108
You use negative exponents for ____, an example is___.
small numbers
0.23421
Express 7.2 x 107 in standard form
72,000,000
Solve
5 x 102 + 3 x 103
3.5 x 103
Solve
6×104 − 5×103
5.5 × 104
Solve
(6.4×105)÷(8×102)
8×102
What is wrong with how this number is written?
0.00651 x 10-4
There must be 1 digit greater that zero to the left of the decimal.
Express 0.00007290 in scientific notation
7.29 x 10-5
Sove
4.2 x 10-1 + 1.3 x 10-1
4.33 x 10-1
Solve
3.7×10−2 − 1.2×10−3
3.58×10−2
Solve
(3.2×10−4)×(5×106)
1.6×103
Write 0.00651 x 10-4 correctly in scientific notation
6.51 x 10-7
Express -42,300,000,000 in scientific notation
-4.23 x 1010
Solve
6.72×10−6+3.1×10−4
316.72×10−6
Solve
5.04×10−4 − 2.8×10−6
2.4 x 10-4
Solve
(9.0×10−1)÷(3×103)
3.0 x 10-4
Solve
((3×104)+(2×104))÷(5×102)
1×102