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=(5016+912). 37 : 13 : 74
=5928.37 : 13 : 74
=219336 : 13 : 74
=16872:74
=2410
(456.11+912).37:13:74
= (456.11+912):13:(74:37)
= (456.11+456.2):13:2
= 456.(11+2):13:2
= 456.13:13:2
= (456:2).(13:13)
= 228.1
= 228
20,11*36+65*20,11-2011
=20,11*[36+65]-2011
=20,11*100-2011
=201,1-2011
=[-1809,9]
\(20,11.36+65.20,11-2011\)
\(=20,11.36+65.20,11-20,11.100\)
\(=20,11\left(36+65-100\right)\)
\(=20,11\left(101-100\right)\)
\(=20,11.1=20,11\)
5.25.2.8.199.4.125
=(25.4).(125.8).(5.2).199
=100.1000.10.199
=100000.10.199
=100000000.199
=19900000000
\(5.25.2.8.199.4.125\)
\(=\left(5.2\right)\left(25.4\right)\left(125.8\right)199\)
\(=10.100.100.199\)
\(=1000000.199\)
\(=199000000\)
5x25x2x8x199x4x125
= ( 5x2)x (25x4)x(8x125)x199
= 10x100x1000x199
= 199000000
\(\left(-23\right).63+23.21-58.23\)
\(=23.\left(-63+21-58\right)\)
\(=23.\left(-100\right)\)
\(=-2300\)
Có: -23.63+23.21-58.23
= 23. -63 + 23 . 21 - 58 . 23
= 23 ( -63 + 21 - 23 )
= 23 . -65
= -1495
11.72 + 9.22.8 + 18.67.4
=11.72 + 72.22 + 72.67
=(11+22+67).72
=100.72
=7200
11 . 72 + 9 . 22 . 8 + 18 . 67 . 4
= 11 . 72 + 9 . 8 . 22 + 18 . 4 . 67
= 11 . 72 + 72 . 22 + 72 . 67
= 72 . ( 11 + 22 + 67 )
= 72 . 100
= 7200
\(( 675 , 98 + 888 , 66 + 111 , 34 ) × 0 , 01\)
\(( 675 , 98 + 1000 ) × 0 , 01\)
\( 1675 , 98 × 0 , 01\)
\( 16 , 7598 .\)