Respuesta :
Answer:
Step-by-step explanation:
Underline the number you are rounding to, look at the digit to the right of the underline digit, if the number is 0 - 4, the underlined number stays the same, all others are zero, if the numbers is 5 - 9, the underlined digits goes up, all others are zero.
90,000 bc the place below the 10 thousands (thousands) is higher than 5, so u round up