What numerical proverbs are there to express the calculation in your mind?

However, there is a saying, I know it well: grasping the big and letting go of the small is sure in nine cases out of ten, and it is not easy to do things, which requires great efforts and a distance of 108,000 miles. After all, 99 is one and 99 is small.

Small abacus, three times five divided by two, three times seven twenty-one, etc. Sometimes we spend a lot of effort and what we do may not be successful, but it may be a small move that will usher in a turning point.

As sure as a gun:

Explanation:

Describe confidently; Very reliable.

Source:

Qing Wenkang's Biography of Heroes of Children: "With such a line, I'm afraid the case is certain."

Grammar:

The combination of ten in one and nine in one; As predicate, attribute, object and adverbial; With praise.

Example:

His academic performance is very good, and entering the university should be a shoo-in.

Have the answer, rest assured, peace of mind. Easy to get, ambitious.

Synonym:

Sure, a shoo-in, An Ruo Taishan, a piece of cake, a shoo-in, shooting turtles in a jar, full of confidence, taking things from the bag.

Antonym:

Full of loopholes.