演算的英文：
calculate
perform calculations

参考例句：

A functional calculus
函数演算

Struggled through calculus.
艰难地进行演算

At this age,he should be able to subtract one fraction from another.
他这个年龄应该会演算分数减法。

At this age, you should be able to subtract one fraction from another.
在你这个年龄,你应该会演算分数减法了。

And the abb, casting away his coverlet, resumed his place, and continued his calculations
你们走吧！我没什么可说的了。”于是神甫扔下他的床单，又坐回到了老地方，继续进行他的演算去了。

calculate是什么意思：
v. 计算，推测

These are the calculating formulas.
这些是计算公式。

Please calculate quotient and remainder.
请计算商和余数。

Program a computer for pay calculations
为计算机计算工资作程序设计

perform是什么意思：
v. 执行；完成；演奏；表演；运转，运行；做，进行

She gave a respectable performance.
她的演出还不错。

The performances have been absolutely phenomenal.
表演绝对精彩。

It's an insufferably cute performance.
这是一场不能忍受的矫揉造作的表演。

calculations是什么意思：
n. 计算；计算结果；估计，预测，深思熟虑

These are the calculating formulas.
这些是计算公式。

Please calculate quotient and remainder.
请计算商和余数。

Program a computer for pay calculations
为计算机计算工资作程序设计