1 and the two meanings of multiplication;
(1) indicates how many identical numbers add up.
(2) Representation: What is the multiple of a number,
2. Three meanings of division:
(1) means: divide a number into several parts on average, and each part is several parts. (the meaning of sharing equally)
(2) indicates that there are several numbers in a number. (including the meaning of division)
(3) indicates that one number is several times that of another. (the meaning of multiple division)
Find out how many times one number is another number, and then divide it.
4. Know that one number is several times that of another number, and find a number by multiplication.
5. Know that one number is several times that of another number, and find another number by division.
6. Find the multiple of a number by multiplication.
7. Equitable formula: total number ÷ number of copies = number of copies.
8. Formula including division: total number ÷ each copy = number of copies.
9. Be familiar with the names of all parts of multiplication and division and the reading of formulas.
3 × 4 = 12
Multiplier product
Read: 3 times 4 equals 12.
12 ÷ 4 = 3
Divider quotient
Reading: 12 divided by 4 equals 3.