# Subtract Scientific Notation Calculator

Subtraction Scientific Notation Online

### Instructions for use:

• If the scientific notation is 55447 x 104, you must use 55447e+4;
• If the scientific notation is 2.5567 x 10-2, you must use 2.5567e-2;
• You will replace base 10 with the letter (e).

Scientific Notation 1:

Scientific Notation 2:

## Subtraction in scientific notation

We subtract the coefficients in scientific notation when the base ten orders of magnitude are equal. Observe the general formula and some examples below:

### General formula for subtraction in scientific notation

(x . 10a ( y . 10a) = (x  y) . 10a

• Example: Obtain the results of the subtractions below:
• a) 34,567 . 103 – 5,6 . 103 = (34,567 – 5,6) . 103 = 28,967 . 103 = 2,8967 . 104
• b) 1,14 . 10-2 – 0,26 . 10-2 = (1,14 – 0.26) . 10-2 = 0,88 . 10-2 = 8,8 . 10-3
• c) 25,4 . 10– 12,3 . 103 = 25,4 . 10– 123 . 102 = (25,4 – 123) . 102 = – 97,6 . 10= – 9,76 . 10→ We had to transform 12.3 to 123 because the order of magnitude chosen for base ten was number 2. 