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Urgent need! ! ! Math level in the second grade of primary school! !
Multiplication and division are learned in grade three because you have to memorize nine tables. Multiplication in the first semester of grade three and division in the second semester are all oral calculations, and multiplication and division are learned in grade four. In the second grade, I can basically learn the written calculation of addition and subtraction, but it is generally an integer within 10000, while the decimal addition and subtraction will not be learned until the third grade. I sorted out the mathematics knowledge learned in every grade of the whole primary school.

The first semester of senior one: learn to count and understand the meaning of numbers.

The second semester of senior one: understand the meaning of addition and subtraction, and learn simple oral calculation.

The first semester of senior two: I began to learn more complicated addition and subtraction, knowing how to carry and abdicate.

The second semester of senior two: learning to add and subtract in writing.

The first semester of Grade Three: Understand the meaning of multiplication, recite nine tables, and learn simple multiplication oral calculation.

The second semester of the third grade: learn division under the premise of learning multiplication, understand the meaning of division, and learn simple division and oral calculation.

The first semester of grade four: understand the meaning of decimals, learn the addition and subtraction of decimals, and learn the perimeter and area of rectangles and squares.

The second semester of grade four: learn elementary arithmetic and operation order, and learn the volume and surface area of cuboids and cubes.

The first semester of grade five: learning the meaning of scores, reading and writing scores, and learning the perimeter and area of triangles, figures and parallelograms.

The second semester of grade five: learn the addition and subtraction of fractions with the same denominator and learn simple statistics.

The first semester of grade six: learn the addition, subtraction, multiplication and division of different denominator fractions, and learn general fractions and reduced fractions.

The second semester of grade 6: learning elementary arithmetic and the circumference and area of a circle, simple statistics, the volume and surface area of a cylinder and the volume of a cone.

Every grade and every semester has application problems corresponding to what they have learned.