99 multiplication formula table:

1× 1= 1; 1×2=2; 2×2=4; 1×3=3; 2×3=6; 3×3=9; 1×4=4; 2×4=8; 3×4= 12; 4×4= 16; 1×5=5; 2×5= 10; 3×5= 15; 4×5=20; 5×5=25; 1×6=6; 2×6= 12; 3×6= 18; 4×6=24; 5×6=30; 6×6=36; 1×7=7; 2×7= 14; 3×7=2 1; 4×7=28; 5×7=35; 6×7=42。

7×7=49; 1×8=8; 2×8= 16; 3×8=24; 4×8=32; 5×8=40; 6×8=48; 7×8=56; 8×8=64; 1×9=9; 2×9= 18,3×9=27; 4×9=36; 5×9=45; 6×9=54; 7×9=63; 8×9=72; 9×9=8 1。

Extended knowledge

99 multiplication formula is one of the classics in Chinese traditional mathematics education, which is used to help students calculate multiplication formula quickly and accurately. On the basis of learning 99 multiplication formula, you can also expand some related knowledge to make learning more interesting.

Application of 99 multiplication formula:

1, mathematical operation: 99 The formula of multiplication is the basis of basic mathematical operation, which is very helpful for calculation and problem solving in daily life.

2. Mental arithmetic ability: By mastering the formula of 99 multiplication, the speed and accuracy of mental arithmetic can be improved, and students can use mathematical knowledge more flexibly.

Mathematical inspiration:

1, pattern discovery: when students learn the formula of 99 multiplication, they can find some interesting mathematical patterns, such as symmetry and numerical laws. To stimulate their interest in mathematics.

2. Logical thinking: 99 multiplication formula learning can cultivate students' logical thinking, let them understand the relationship between numbers and improve their ability to solve problems.

History of mathematics:

1, the origin of the formula: we can deeply understand the origin and development of the 99 multiplication formula and understand the contribution of different cultures to mathematics education.

2. Evolution of the formula: Understand the inheritance and evolution of the 99 multiplication formula in different periods and regions, and understand the diversity and richness of the formula.

Math game:

1, formula game:

Make some interesting formula games so that students can learn formulas in the games and increase their interest in learning.

2, digital puzzle:

Make a digital puzzle of 99 multiplication formula, and let the students remember the formula through the puzzle.