# Add & Subtract Scientific Notation Worksheets

There are five sets of scientific notation worksheets:

Examples, solutions, videos, and worksheets to help Grade 7 and Grade 8 students learn how to add & subtract numbers in scientific notation.

### How to add & subtract numbers in scientific notation?

There are two sets of dividing numbers in scientific notation worksheets.

• Add & Subtract numbers in scientific notation (positive exponents).
• Add & Subtract numbers in scientific notation (include negative exponents)

These are the steps to add & subtract numbers in scientific notation:

1. Make sure that the exponents of both numbers are the same. If they are not the same, adjust one or both of the numbers so that they have the same exponent.
2. Add or subtract the coefficients of the numbers.
3. Keep the common exponent from step 1.
4. Adjust the result to scientific notation if needed.

Example: (3.52 x 105) + (2.6 x 102)

1. Since the numbers have different exponents, we need to adjust them before adding.
• Adjust the second number to have an exponent of 5: 2.6 x 102 = 0.0026 x 105
1. Add the coefficients: 3.52 + 0.0026 = 3.5226
2. Keep the common exponent 105.
3. The result is 3.5226 x 105.

Example: (4.33 x 103) − (3.6 x 104)

1. Since the numbers have different exponents, we need to adjust them before subtracting.
• Adjust the second number to have an exponent of 3: 3.6 x 104 = 36 x 103
1. Subtract the coefficients: 4.33 - 36 = -31.67
2. Keep the common exponent 103.
3. Adjust the result is -31.67 x 103 = -3.167 x 104

Have a look at this video if you need to review how to add & subtract numbers in scientific notation.

Click on the following worksheet to get a printable pdf document.
Scroll down the page for more Add & Subtract Scientific Notation Worksheets.

### More Add & Subtract Scientific Notation Worksheets

Printable
Scientific Notation Worksheet #1 (positive exponents)
Scientific Notation Worksheet #2 (include negative exponents)

More Printable Worksheets

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