What words can be combined and conversely?

Calculate which words can be combined:

Calculate,

Written calculation,

Finally,

Oral calculation,

Arithmetic,

Estimate,

Plan,

Even though,

Calculate,

Budget,

Calculate,

Fast calculation,

The chance to win,

Checking calculation,

Final accounts,

Calculate,

Calculate silently,

Cost-effective,

Count it,

Liquidation,

Estimate,

Conversion,

Fortune telling,

Accounting,

Settlement,

Calculate,

Sort of,

Plan,

Operation,

Settle accounts,

Budget estimate,

Calculate,

Arithmetic,

Conversion,

Arithmetic,

English computing,

Star computing,

Grinding,

Wine calculation,

Math exercises