Answer:
Step-by-step explanation:
When we subtracting variables with exponent, both should have same exponents
6.28 * 10⁶ - 1.256*10⁵ = 62.8 *10⁵ - 1.256*10⁵
= (62.8 - 1.256) *10⁵
= 61.544 *10⁵
= 6.1544 *10⁶
