a) do tysięcy

$8774\approx 9000$

$5269\approx 5000$

$34499\approx 34000$

$161527\approx 162000$

$601\approx 1000$

b)do setek

$372\approx 400$

$213\approx 200$

$852\approx 900$

$7832\approx 7800$

$2066\approx 2100$

c)do dziesiątek

$29\approx 30$

$174\approx 170$

$4751\approx 4750$

$3289\approx 3290$

$9993\approx 9990$