Question

Can you help me please

Answer 1

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