One plus one equals two, two plus one equals three. Three plus one equals four, and four plus one equals five.

Five plus one equals six, and six plus one equals seven. Seven plus one equals eight, and eight plus one equals nine.

Nine plus one equals ten, and ten plus zero equals ten.

Additional phrases in 10:

One, one, two, one, two, two are all here. One, two, three, two, one, three, three is simple.

Remember the composition of one, three, four, two, two, four and four. One, four, five, two, three, five, five is my decision.

One, five, six, two, four, six, three, three, six, six. Remember carefully the composition of 16, 7, 257, 347, 7.

One, seven, eight, two, six, eight, three, five, eight, four, eight, eight. Remember it.

18, 9, 27, 9, 3, 6, 9, 4, 5, 9.

19, 10, 28, 10, 37, 46, 10, 55, 10 are solids.

/kloc-division within 0/0:

2 can be divided into 1 and1;

3 can be divided into 2 and 1, 1 and 2;

4 can be divided into 3 and 1, 2 and 2, 1 and 3;

5 can be divided into 4 and 1, 3 and 2, 2 and 3, 1 and 4;

6 can be divided into 5 and 1, 4 and 2, 3 and 3, 2 and 4, 1 and 5;

7 can be divided into 6 and 1, 5 and 2, 4 and 3, 3 and 4, 2 and 5, 1 and 6;

8 can be divided into 7 and 1, 6 and 2, 5 and 3, 4 and 4, 3 and 5, 2 and 6, 1 and 7;

9 can be divided into 8 and 1, 7 and 2, 6 and 3, 5 and 4, 4 and 5, 3 and 6, 2 and 7, 1 and 8;

10 can be divided into 9 and 1, 8 and 2, 7 and 3, 6 and 4, 5 and 5, 4 and 6, 3 and 7, 2 and 8, 1 and 9.

Expand knowledge:

Addition and subtraction is one of the most basic operations in mathematics. They are not only the simple combination of addition and subtraction, but also the embodiment of mathematical concepts and ways of thinking. Addition and subtraction is one of the most basic mathematical concepts of human civilization, and its history can be traced back to ancient times. In ancient times, people used various methods to calculate addition and subtraction.

Such as stones, ropes, fingers, etc. With the passage of time, mathematicians have gradually developed more abstract and complex mathematical tools and concepts to better understand and solve practical problems.