rachuba 英語で:

I have gone astray somewhere in my calculation.

According to my calculation, she should be in India by now.

I beg to point out that your calculation is wrong.

Why are your calculations different from mine?

I’m good at maths. I find complex calculations easy.

Try and solve this simple mathematical calculation.

They are now widely used for communication, calculation, and other activities.

Calculation is miles easier if you have a calculator.