04.12.2020 20:46:15
Математика 1-4 класс
10 баллов
Помогите решить, используя свойства умножения, расписав решение:
25*16=
125*24=
48*25=
32*25=
(6*14)*5=
(5*11)*8=
(9*6)*5=
5*(17*2)=
2*(13*5)=
8*(7*5)=
(27*2)*5=
(5*9)*4=
(9*2)*5=
5*(4*3)*5=
5*(11*4)*5=
4*(5*7)*5=
(4*2)*(3*5)=
25*24=
8*35=
42*50=
12*25=
25*16=
125*24=
48*25=
32*25=
(6*14)*5=
(5*11)*8=
(9*6)*5=
5*(17*2)=
2*(13*5)=
8*(7*5)=
(27*2)*5=
(5*9)*4=
(9*2)*5=
5*(4*3)*5=
5*(11*4)*5=
4*(5*7)*5=
(4*2)*(3*5)=
25*24=
8*35=
42*50=
12*25=
Ирина Каминкова
2
04.12.2020 21:55:27
25*16= 25*(4*4)= (25*4)*4=100*4=400
125*24=125*(8*3) = (125*8)*3 = 1000*3 = 3000
48*25= (12*4)*25 = 12*(4*25)=12*100=1200
32*25=(8*4)*25=8*(4*25)=8*100=800
(6*14)*5=(6*7)*(2*5)=42*10=420
(5*11)*8=11*(5*8)=11*40=440
(9*6)*5=9*(6*5)=9*30=270
5*(17*2)=(5*2)*17=170
2*(13*5)= (2*5)*13=10*13=130
8*(7*5)=(8*5)*7=40*7=280
(27*2)*5=27*(2*5)=27*10=270
(5*9)*4=(5*4)*9=20*9=180
(9*2)*5=9*(2*5)=9*10=90
5*(4*3)*5=(5*5)*4*3 = (25*4)*3=100*3=300
5*(11*4)*5=(5*5)*4*11=(25*4)*11=100*11=1100
4*(5*7)*5=(5*5)*4*7 = (25*4)*7=100*7=700
(4*2)*(3*5)=(5*2)*(4*3) = 10*12=120
25*24=25*(4*6) = (25*4)*6 = 100*6=600
8*35= 8*(5*7) = (8*5)*7=40*7=280
42*50=(21*2)*50 = 21*(2*50)=21*100=2100
12*25=(3*4)*25=3*(4*25)=3*100=300
125*24=125*(8*3) = (125*8)*3 = 1000*3 = 3000
48*25= (12*4)*25 = 12*(4*25)=12*100=1200
32*25=(8*4)*25=8*(4*25)=8*100=800
(6*14)*5=(6*7)*(2*5)=42*10=420
(5*11)*8=11*(5*8)=11*40=440
(9*6)*5=9*(6*5)=9*30=270
5*(17*2)=(5*2)*17=170
2*(13*5)= (2*5)*13=10*13=130
8*(7*5)=(8*5)*7=40*7=280
(27*2)*5=27*(2*5)=27*10=270
(5*9)*4=(5*4)*9=20*9=180
(9*2)*5=9*(2*5)=9*10=90
5*(4*3)*5=(5*5)*4*3 = (25*4)*3=100*3=300
5*(11*4)*5=(5*5)*4*11=(25*4)*11=100*11=1100
4*(5*7)*5=(5*5)*4*7 = (25*4)*7=100*7=700
(4*2)*(3*5)=(5*2)*(4*3) = 10*12=120
25*24=25*(4*6) = (25*4)*6 = 100*6=600
8*35= 8*(5*7) = (8*5)*7=40*7=280
42*50=(21*2)*50 = 21*(2*50)=21*100=2100
12*25=(3*4)*25=3*(4*25)=3*100=300
Ответ эксперта
