☰ Contents · Mathematics

Parts of multiplication, the swap property, multiplying by 1 and 2

Lessons 93–97 · 5 lessons · I.V. Repyova, Y.V. Zemlina. Mathematics Grade 2, Parts 1–4. Novda Edutainment, 2023
93

Parts of a multiplication

Textbook: Part 3, lesson 87, pp. 34–35
GoalKnow the parts of multiplication (factor, product) and write with multiplication.
New words
factor · ko‘paytuvchiproduct · ko‘paytmato take times · marta olishexpression · ifoda
Explanation

In 2 × 4 = 8 the numbers 2 and 4 are factors and 8 is the product. The expression 2 × 4 is also called a product. “6 taken 5 times” means 6 × 5, that is 6 + 6 + 6 + 6 + 6 = 30.

Worked examples
3 × 4 = 12: 3 and 4 are factors, 12 is the product.
7 taken 4 times: 7 × 4 = 7 + 7 + 7 + 7 = 28.
Class activity

“Find the part”: the teacher writes an equality (3 × 4 = 12). Children hold up a “factor” card or a “product” card as asked.

Practice
1
In 3 × 4 = 12, what is the number 12 called?
2
6 is taken 5 times. What is the product?
3
7 is taken 4 times. What is the product?
4
A stand has 4 rows with 10 photos in each. How many photos in total?
5
12 is taken 3 times. What is the product?