Holly read 128 pages on monday, 239 pages on tuesday, and 152 pages each day on wednsday through friday. estimate the number of pages holly read to the nearest 10

If you estimate, it's okay to not be so accurate so you just round up each of the numbers to the nearest 10 and add them up.

128 would equal 130 (The last digit is larger than 5)

239 would equal 240 (The last digit is larger than 5)

152 would equal 150 (The last digit is less than 5)

130 + 240 + 150 = 520

So I believe your answer is 520!