Question

Найдите разные способы вычисления произведения и запишите соответствующие цепочки равенств: 36*25 , 125*12 , 24*75 , 150*42

Answer 1

1) 9*4*5*5
    3*3*2*2*5*5
2) 5*5*5*2*2*3
    25*5*6*2
3) 8*3*25*3
   2*2*2*3*5*5*3
4) 25*6*7*6
    5*5*6*21*2

Answer 2

Ways to Calculate the Products

36 * 25: - One way to calculate the product of 36 and 25 is by using the traditional multiplication method: - 36 - x 25 - ______ - 180 (36 * 5) - 900 (36 * 20, shifted one position to the left) - ______ - 900 + 180 = 900 + 180 = 900 + 180 = 1080

125 * 12: - Another method to calculate the product of 125 and 12 is by using the traditional multiplication method: - 125 - x 12 - ______ - 250 (125 * 2, shifted one position to the left) - 1000 (125 * 8, shifted two positions to the left) - ______ - 1000 + 250 = 1250

24 * 75: - The product of 24 and 75 can be calculated using the traditional multiplication method: - 24 - x 75 - ______ - 120 (24 * 5) - 1200 (24 * 50, shifted one position to the left) - ______ - 1200 + 120 = 1320

150 * 42: - Similarly, the product of 150 and 42 can be calculated using the traditional multiplication method: - 150 - x 42 - ______ - 300 (150 * 2) - 6000 (150 * 40, shifted one position to the left) - ______ - 6000 + 300 = 6300

[[7 #]] provides an alternative way to calculate the product of 150 and 125, but it seems to be unrelated to the question.