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Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Scientific notations

Grade: 6-b Lesson: S2-L8

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Discussion: Step1 Step2 Step3 Step4 Step5

Step Type Explanation Answer

1

Problem

Express \$(6.25×10^4)\$ in standard decimal notation.

2

Step

Given the number

\$(6.25×10^4)\$

3

Step

Since the exponent is 4 (positive), move the decimal point in 6.25 four places to the right.

4

Step

After moving the decimal point four places to the right, the number becomes

62500

5

Step

So, \$(6.25×10^4)\$ in standard decimal notation is 62500.

6

Choice.A

This answer is incorrect because the decimal notation is 62500

625000

7

Choice.B

This answer is correct because the decimal notation is 62500

62500

8

Choice.C

This answer is incorrect because the decimal notation is 62500

6520

9

Choice.D

This answer is incorrect because the decimal notation is 62500

65200

10

Answer

Option

B

11

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5

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