E – ASW – PP33

Which estimate is more accurate for 2789 + 5946? 7000 or 9000

E – ASW – PP34

Which estimate is more accurate for 24 564 + 15 948? 30 000 or 35 000

E – ASW – PP35

Which estimate is more accurate for 48 462 – 29 449? 20 000 or 30 000

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