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a ) 0.8 x 0.04 x 1.25 x 25 x 0.6524 x 0.3467
= ( 0.8 x 1.25 ) x ( 0.04 x 25 ) x 0.6524 x 0.3467
= 1 x 1 x 0.6524 x 0.3467
= 0.6524 x 0.3476
Vậy ta được phép tính thu gọn là
0.6524 x 0.3476
b ) 10 x 125 x 4 x 25 x 8
= 10 x (125 x 8) x (4 x 25)
= 10 x 1000 x 100
= (10x 100) x 1000
= 1000 x 1000
= 10002
Vậy phét tính thu gọn là 10002
0,8x0,04 x1,25 x 25 x 0, 6524 x 0,3476
= ( 0,8x1,25) x ( 0,04 x 25) x ( 0,6524 x 0,3476)
= 1x10 x 0,22677424
= 2,2677424
10x125 x 4 x 25 x 8
= 10 x ( 125 x8 ) x ( 4 x 25 )
= 10 x1000 x100
= 1000000
k minh nha
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12 x 125 x 24 x 50
= (12 x 50) x (125 x 24)
= 600 x 3000
= 1800000.
(Tíck cho mình với nhé!)
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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
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2 x 3 x 4 x 8 x 50 x 25 x 125
= 3 x 2 x 4 x 50 x 8 x 25 x 125
= 3 x (2 x 50) x (4 x 25) x (8 x 125)
= 30 000 000.
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125*127*8-25*170*4
=(125*8)*127-(25*4)*170
=1000*127-100*170
=127 000 - 17 000=110 000
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a, Ta có:
1996 + 3992 + 5988 + 7984
= 1 x 1996 + 2 x 1996 + 3 x 1996 + 4 x 1996
= (1 + 2 + 3 + 4) x 1996
= 10 x 1996
= 19960
b, 2 x 3 x 4 x 8 x 50 x 25 x 125
= 3 x 2 x 4 x 50 x 8 x 25 x 125
= 3 x (2 x 50) x (4 x 25) x (8 x 125)
= 30 000 000.
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a) 19,17x25x4=19,17(25x4)=19,17x100=1917
b)1,79x(8x125)=1,79x1000=1790
chúc bạn học tốt
\(A=\frac{8.4.125.25+96524+476}{10.125.4.25.8}\)
\(A=\frac{1000.100+96524+476}{10.1000.100}\)
\(A=\frac{100000+96524+476}{1000000}\)
\(A=\frac{100000+97000}{1000000}=\frac{197000}{1000000}=\frac{197}{1000}\)
\(A=0,197\)
A = 100000 + 96524 + 4760000
A = 4956524