Practice time! Build, read, & write three-digit numbers using base-10 blocks and symbols. Practice time! Build, read, write (in standard and expanded form), and represent three-digit numbers using ...

convert the numbers from standard form into decimal form or ordinary numbers complete the calculation convert the answer back into standard form Calculate \((4 \times 10^9) \times (7 \times 10^{-3})\) ...

Notice that a negative power does not mean that the number is negative. It means that we have gone from multiplying by 10 to dividing by 10. 0.03 = \(3 \times 10^{-2}\) because the 3 is 2 places away ...