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\(=32+42\cdot16+48\cdot5+16\)
\(=48\cdot6+42\cdot16\)
=288+672
=960
2/3 x 4/5 + 4/5 x 8/3 = 4/5 x (2/3 + 8/3) = 4/5 x 10/3 = 8/3
27/32 x 16/9 -27/32 x7/9 + 27/32
= 27/32 x (16/9 - 7/9 + 1 )
=27/32 x 2
=27/16
\(\frac{2}{3}\) x \(\frac{4}{5}\) + \(\frac{4}{5}\) x \(\frac{8}{3}\)
=\(\frac{4}{5}\) x ( \(\frac{2}{3}\) + \(\frac{8}{3}\) )
= \(\frac{4}{5}\) x \(\frac{10}{3}\)
= \(\frac{40}{15}\) = \(\frac{8}{5}\)
a: \(=27\left(77+15\right)+27\cdot8\)
\(=27\cdot92+27\cdot8=27\cdot100=2700\)
b: \(=75\cdot89+75\cdot9+2\cdot75=75\left(89+9+2\right)=75\cdot100=7500\)
c: \(=0.25\left(42.9-11.7+0.8\right)=0.25\cdot32=8\)
d: 738 phút=12,3 giờ
8 x 12 x 32 + 4 x 27 x 24 + 41 x 6 x 16
=96 x 32 + 96 x 27 + 96 x 41
=96 x (32 + 27 + 41)
= 96 x 100
=9600
A = 8 × 12 × 32 + 4 × 27 × 24 + 41 × 6 × 16
A = 8 × 12 × 32 + 4 × 24 × 27 + 6 × 16 × 41
A = 96 × 32 + 96 × 27 + 96 × 41
A = 96 × (32 + 27 + 41)
A = 96 × 100
A = 9600
a) 81 + 243 + 19 = (81 + 19) + 243
= 100 + 143 = 243
b) 168 + 79 + 132 = (168 + 132) + 79
= 300 + 79 = 379
c) 5 x 25 x 2 x 16 x 4 = (5 x 2) x (25 x 4) x 16
= 10 x 100 x 16 = 16000
d) 32 x 47 + 32 x 53 = 32 x (47 + 53)
= 32 x 100 = 3200
e) 26 + 27 + 28 + 29 + 30 + 31 + 32 = (26 + 32) + (27 + 31) + (28 + 30) + 29
= 58 + 58 + 58 + 29
= 58 x 3 + 29 = 174 + 29 = 203
8×12×32+4×27×24+6×46×16
=(8×12)×32+(4×24)×27+(6×16)×46
=96×32+96×27+96×46
=96×(32+27+46)
=96×105
=201
32 x 27 + 148 x 34 + 16 x 94
= ( 32 x 27 + 16 x 94 ) + 74 * 2 * 34
= 32 ( 27 + 47 ) + 74 x 68
= 32 x 74 + 74 x 68
= ( 32 + 68 ) x 74
= 100 * 74
= 7400
\(\frac{2017\cdot2013-2017}{4034\cdot1006+2007}\)
\(=\frac{2017\cdot\left(2013-1\right)}{2017\cdot\left(2012+1\right)}\)
\(=\frac{2012}{2013}\)
= {68,5 x 25,9 - 14,75} x { 32 x 10 + 32 - 320 - 32}
= {68,5 x 25,9 - 14,75} x 320 + 32 - 320 - 32
={ 68,5 x 25,9 - 14,75} x 0
= 0 tk nhé
\(32.27+32.53\)
\(=32\left(27+53\right)\)
\(=32.80\)
\(=2560\)
32 x 27 + 32 x 53
= 32 x ( 27 + 53)
= 32 x 80
=2560