25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
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4 × 125 × 25 × 8
= (4 × 25) × (125 × 8)
= 100 × 1000
= 100 000
2 × 8 × 50 × 25 × 125
= (2 × 50) × (8 × 125) × 25
= 100 × 1000 × 125
= 12 500 000
2 × 3 × 4 × 5 × 50 × 25
= (2 × 50) × (4 × 25) × (3 × 5)
= 100 × 100 × 15
= 150 000
25 × 20 × 125 × 8 - 8 × 20 × 5 × 125
= 8 × 125 × 20 × (25 - 5)
= 1000 × 20 × 20
= 400 000
- (25 x 4) x (125 x8)=100 x 1000 =100000
- (50 x 2) x (8 x 125) x 25=100 x 1000 x 25 =2500000
- (2 x 50 ) x (4 x 25) x (3 x5)=100 x 100 x 15=150000
- 25 x 20 x125 x 8 - 5
= (20 x 5) x (125 x 8) -25=100 x 1000 -5 =100000 - 5 =99995
25 x 20 x 125 x 8 - 8 x 20 x 5 x 15
= ( 8 - 8 ) x 25 x 20 x 125 x 20 x 5 x 15
= 0 x 25 x 20 x 125 x 20 x 5 x 15
= 0 ( vì số nào nhân 0 cũng bằng 0 )
= 500\(\times\)1000\(-\)( 8\(\times\)125 ) \(\times\)( 20\(\times\)5 )
= 500\(\times\)1000\(-\)1000\(\times\)100
= 1000\(\times\)( 500\(-\)100 )
= 1000\(\times\)400
= 400000
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
35 x 20 x 5 8 x 9 x 125 25 x 7 x 4 72:(8x3)
= 35 x ( 20 x5 ) = ( 8x125) x 9 = (25x4)x7 = 72: 24
= 35 x 100 = 1 000 x 9 = 100x7 = 3
= 3 500 = 9 000 =700
(36x7):4
=36: 4 x 7
= 9 x7
= 63
35 x 20 x 5 = 35\(\times\)(20 \(\times\)5)= 35 \(\times\)100=3500
8 \(\times\)9 \(\times\) 125 =(8\(\times\) 125)\(\times\)9=1000\(\times\)9=9000
25 \(\times\)7\(\times\)4=(25 \(\times\)4)\(\times\)7=100\(\times\)7=700
72 : (8\(\times\)3)=72 : 8 x 3 =(72:8) x 3=9 x 3=27
(36 x 7) : 4 =36 x 7 : 4 =7 x (36 :4)=7 x 9=63
4 x 20 x 25 x 5 x 125 x 10 x 10 x 8 = ( 25 x 4 ) x ( 20 x 5 ) x ( 125 x 8 ) x ( 10 x 10 )
= 100 x 100 x 1000 x 100
= 1 000 000 000
4x20x25x5x125x10x10x8
=(4x25)x(125x8)x(10x10)x(20x5)
=100x1000x100x100
=1000000000
25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
= ( 25 x 20 x 125 x 8 ) - ( 8 x 20 x 5 x 125 )
= 500 000 - 100 000
= 400 000
=125x20x8x(25-5)
=125x20x8x20=(125x8)x(20x20)
=1000x400
400000
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