Even under version 7.2, Vim does only floating-point arithmetic if one of the operands is explicitly floating-point.

即使对于版本7.2，如果其中一个运算对象被明确声明为浮点类型，那么Vim只支持浮点算术。

youdao

What's the value of teaching Liani to read, write, do arithmetic, if we taught her nothing of what she truly needed to know: how to live in joy, how to have a sense of personal worth and dignity?

如果我们不教莉安妮真正需要知道的东西：教她如何幸福地生活，如何感受个人的价值和尊严，那么教她阅读、写作和算术又有什么价值呢？

youdao

After supper Paul asked his father if he could visit a friend to get some help with his arithmetic.

VOA: special.2009.04.04

They loved arithmetic. As Paul walked toward his house he felt as if he were drowning in ugliness.

VOA: special.2009.04.04

But as a matter of simple arithmetic, if the banks don't lose and Greece gains, there must be an additional subsidy in there somewhere from eurozone governments, either in the "high-quality assets" provided as a back up or, possibly, the promise of preferential treatment for these new bonds in the event of a default.

BBC: France's private support for Greece a matter of degree

My point is that his clever arithmetic, even if his fingers were crossed behind his back, can do real damage to his less sophisticated audience.

FORBES: Million Dollar Jobs

The most likely way this electoral arithmetic will change is if the two main parties win back votes from the smaller parties, whose share of the vote, at 30.6%, is at a high.

ECONOMIST: Psephology