Let's solve this step-by-step. The worksheet has two parts:
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Part 1: Write each number in standard format
This means converting from
scientific notation to
standard (decimal) form.
To do this:
- If the exponent is
positive, move the decimal point to the
right.
- If the exponent is
negative, move the decimal point to the
left.
- Move the decimal point as many places as the exponent indicates.
---
####
1) 5.2034 × 10⁸
Move decimal 8 places right:
5.2034 → 520,340,000
✔ 520,340,000
####
2) 1.59 × 10⁶
Move decimal 6 places right:
1.59 → 1,590,000
✔ 1,590,000
####
3) 2.1631 × 10⁵
Move decimal 5 places right:
2.1631 → 216,310
✔ 216,310
####
4) 6.2801 × 10⁷
Move decimal 7 places right:
6.2801 → 62,801,000
✔ 62,801,000
####
5) 6.393 × 10²
Move decimal 2 places right:
6.393 → 639.3
✔ 639.3
####
6) 5.4502 × 10²
Move decimal 2 places right:
5.4502 → 545.02
✔ 545.02
####
7) 9.883 × 10⁹
Move decimal 9 places right:
9.883 → 9,883,000,000
✔ 9,883,000,000
####
8) 9.37 × 10⁵
Move decimal 5 places right:
9.37 → 937,000
✔ 937,000
####
9) 4.6845 × 10³
Move decimal 3 places right:
4.6845 → 4,684.5
✔ 4,684.5
####
10) 4.63 × 10⁸
Move decimal 8 places right:
4.63 → 463,000,000
✔ 463,000,000
---
Part 2: Write each number in scientific notation
To convert to scientific notation:
- Move the decimal point so that there’s
only one non-zero digit to the left.
- Count how many places you moved the decimal — that’s the
exponent.
- If you moved it
left, exponent is
positive; if
right, it’s
negative.
---
####
11) 14,660,000
Move decimal 7 places left:
1.466 × 10⁷
✔ 1.466 × 10⁷
####
12) 65,980
Move decimal 4 places left:
6.598 × 10⁴
✔ 6.598 × 10⁴
####
13) 50.2
Move decimal 1 place left:
5.02 × 10¹
✔ 5.02 × 10¹
####
14) 36,200
Move decimal 4 places left:
3.62 × 10⁴
✔ 3.62 × 10⁴
####
15) 1,993,000,000
Move decimal 9 places left:
1.993 × 10⁹
✔ 1.993 × 10⁹
####
16) 4130
Move decimal 3 places left:
4.13 × 10³
✔ 4.13 × 10³
####
17) 765,000
Move decimal 5 places left:
7.65 × 10⁵
✔ 7.65 × 10⁵
####
18) 38.184
Move decimal 1 place left:
3.8184 × 10¹
✔ 3.8184 × 10¹
####
19) 4,470,000
Move decimal 6 places left:
4.47 × 10⁶
✔ 4.47 × 10⁶
####
20) 37,082
Move decimal 4 places left:
3.7082 × 10⁴
✔ 3.7082 × 10⁴
---
✔ Final Answers:
####
Part 1: Standard Format
1) 520,340,000
2) 1,590,000
3) 216,310
4) 62,801,000
5) 639.3
6) 545.02
7) 9,883,000,000
8) 937,000
9) 4,684.5
10) 463,000,000
####
Part 2: Scientific Notation
11) 1.466 × 10⁷
12) 6.598 × 10⁴
13) 5.02 × 10¹
14) 3.62 × 10⁴
15) 1.993 × 10⁹
16) 4.13 × 10³
17) 7.65 × 10⁵
18) 3.8184 × 10¹
19) 4.47 × 10⁶
20) 3.7082 × 10⁴
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Parent Tip: Review the logic above to help your child master the concept of scientific notation worksheet for seventh grade.