Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Scientific notations |
Grade: 6-b Lesson: S2-L8 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Write the number 450000 in scientific notation. |
|
2 |
Step |
Given number |
450000 |
3 |
Step |
First, move the decimal point in 450000 to the left until there is only one non-zero digit to the left of the decimal point. This requires moving the decimal point five places to the left. |
|
4 |
Step |
After moving the decimal point five places to the left |
we get 4.5 , and we have \$ 10^5 \$ left. |
5 |
Step |
Therefore, 450000 in scientific notation is |
\$ 4.5 \times 10^5\$ |
6 |
Choice.A |
This answer is incorrect because the scientific notation of the given number is \$4.5×10^5\$ |
\$4.5×10^3\$ |
7 |
Choice.B |
This answer is incorrect because the scientific notation of the given number is \$4.5×10^5\$ |
\$4.5×10^4\$ |
8 |
Choice.C |
This answer is incorrect because the scientific notation of the given number is \$4.5×10^5\$ |
\$45×10^8\$ |
9 |
Choice.D |
This answer is correct because the scientific notation of the given number is \$4.5×10^5\$ |
\$4.5×10^5\$ |
10 |
Answer |
Option |
D |
11 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
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