Please reckon up how much I must pay.

请你算一算我该付多少钱?

《新英汉大辞典》

Reckon up all your money and see if you have enough.

估算一下你一共有多少钱，看是否已经足够了。

《新英汉大辞典》

Please (reckon up) how much I must pay.

请你算一算我该付多少钱。

youdao

"I reckon if you give me until tomorrow," Ransie pleaded, "I might be able to scrape it up somewhere.

VOA: special.2009.11.14

"I reckon you'll be goin' back up to the cabin, along with the cart," said Ariela.

VOA: special.2009.11.14

That ain't much, but I reckon that'll get me up to brother Ed's."

VOA: special.2009.11.14

Privately her political opponents reckon she comes up with half decent questions.

BBC: FMQs is back. Oh yes it is.

Analysts at UBS, a bank, reckon that euro break-up could cost a peripheral country 40-50% of GDP in the first year, and a core country 20-25% (see article).

ECONOMIST: Europe's currency crisis

Opponents reckon they have colluded in making up optimistic projections about the speed with which airlines will change to yet-to-be-built clean, quiet aircraft.

ECONOMIST: Business travel