2 x 8 x 50 x 25 x 125
= ( 125 x 8 ) x ( 50 x 2 ) x 25
= 1000 x 100 x 25
=2500000
4 x 125 x 25 x 8
= ( 125 x 8 ) x ( 25 x 4 )
= 1000 x 100
=100000
2 x 3 x 4 x 5 x 50 x 25
= ( 25 x 4 ) x ( 2 x 50 ) x ( 3 x 5 )
= 100 x 100 x 15
= 150000
25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
= ( 25 x 20 ) x ( 125 x 8 ) - ( 20 x 5 ) x ( 125 x 8 )
= 500 x 1000 - 100 x 1000
= 500000 - 100000
= 400000
4 x 125 x 25 x 8
= (4x25) x (125x8)
=100x1000
=100000
4 x 125 x 25 x 8
= ( 4 x 25 ) x ( 125 x 8 )
= 100 x 1000
= 100000
2 x 8 x 50 x 25 x 125
= ( 2 x 50 ) x ( 8 x 125 ) x 25
= 100 x 1000 x 25
= 100000 x 25
= 2500000
2 x 3 x 4 x 5 x 50 x 25
= ( 2 x 50 ) x ( 4 x 25 ) x 3 x 5
= 100 x 100 x 3 x 5
= 10000 x 15
= 150000
25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
= ( 8 x 125 ) x 25 x 20 - ( 8 x 125 ) x ( 20 x 5 )
= 1000 x 50 - 1000 x 100
= 50000 - 100000
= - 50000
Chúc bạn hok tốt !
4x125x25x8=(4x25)x(125x8)=100x1000=100000
2x8x50x25x125=(2x50)x(8x125)x25=100x1000x25=2500000
2x3x4x5x50x25=(2x50)x(4x25)x(3x5)=100x100x15=150000
25x20x125x8-8x20x5x125=5x5x20x125x8-8x20x5x125=(5x20x8x125)x(5-1)=(100x1000)x(5-1)=100000x4=400000
Chúc bn học giỏi nhoa!!!
4x125x25x8=(4x25)x(145x8)=100x1000=100000
2x8x50x25x125=(2x50)x(8x125)x25=100x1000x25=2500000
2x3x4x5x50x25=3x5x(2x50)x(4x25)=15x100x100=150000
25x20x125x8-8x20x5x125=0
k mik nha bạn
Câu này dễ thế mà cũng hỏi ,vì Online Math chỉ cho ghi Đ/S thôi nên Đ/S là :
1.100 000 4. 2 500 000
3.8800 5. 400 000
2.12500
Thế nhé !
4 x 125 x 25 x 8
= ( 4 x 25 ) x ( 125 x 8 )
= 100 x 1000
= 100000
2 x 8 x 50 x 25 x 125
= ( 2 x 50 ) x ( 8 x 125 ) x 25
= 100 x 1000 x 25
= 100000 x 25
= 2500000
2 x 3 x 4 x 5 x 50 x 25
= ( 2 x 50 ) x ( 4 x 25 ) x 3 x 5
= 100 x 100 x 3 x 5
= 10000 x 15
= 150000
25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
= ( 8 x 125 ) x 25 x 20 - ( 8 x 125 ) x ( 20 x 5 )
= 1000 x 50 - 1000 x 100
= 50000 - 100000
= - 50000
Chúc bạn hok tốt !