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=46x ( 37+93)+54 x (61+69)
= 46 x 130 + 54 x 130
= 130 x ( 46+54)
=130 x 100
=13000
46 x 37 + 93 x 46 + 54 x 61 + 69 x 54
= 46 x ( 37 + 93 ) + 54 x ( 61 + 69 )
= 46 x 120 + 54 x 120
= 120 x ( 46 + 54 )
= 120 x 100
= 12000
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a, ( 46 + 54 ) + 17 = 100 + 17 = 117
b, ( 4 . 25 ) . 37 = 100 . 37 = 3700
c, 87 . ( 36 + 64 ) = 87 . 100 = 8700
a,46+17+54
=(46+54)+17
=100+17
=117
b,4.37.25
=(4.25).37
=100.37
=3700
c,87.36+87.64
=87.(36+64)
=87.100
=8700
Chúc bạn học giỏi nha ^-^
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Bài : Tính Nhanh
A. 1217 + 31 + 46 + 183 + 154
= (1217+183) + (46+154) + (31+183)
= 1400 + 200 + 214
= 1814
Sorry bạn nha mình bận
A) 1217 + 31 + 46 + 183 + 154
= ( 1217 + 183 ) + ( 154 + 46 ) + 31
= 1400 + 200 + 31
= 1631
B) 125 . 28 . 8 . 25
= ( 125 . 8 ) . ( 28 . 25 )
= 1000 . 700
= 700000
D) 37 + 198
= ( 37 - 2 ) + ( 198 + 2 )
= 35 + 200
= 235
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a) (44 x 52 x 60) : (11 x 13 x 15)
= 44 x 52 x 60 : 11 : 13 : 15
= (44 : 11) x (52 : 13) x (60 : 15)
= 4 x 4 x 4
= 64
b) 2016 x 20152015 - 2015 x 20162016
= 2016 x (20150000 + 2015) - 2015 x (20160000 + 2016)
= 2016 x (2015 x 10000 + 2015) - 2015 x (2016 x 10000 + 2016)
= 2016 x [2015 x (10000 + 1)] - 2015 x [2016 x (10000 + 1)]
= 2016 x 2015 x 10001 - 2015 x 2016 x 10001
= 0
c) 46 x 37 + 46 x 63 + 54 x 267 - 54 x 167
= 46 x (37 + 63) + 54 x (267 - 167)
= 46 x 100 + 54 x 100
= 100 x (46 + 54)
= 100 x 100
= 10000
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a) 46 + 17 + 54 = 117
b) 4 . 37 . 25 = 3700
c) 87. 36 + 87 . 64 = 8700
kick mik đi
\(37\cdot\left(-54\right)+46\cdot\left(-37\right)=-37\cdot54+46\cdot\left(-37\right)\)
\(=-37\cdot\left(54+46\right)=-37\cdot100=-3700\)
\(37.\left(-54\right)+46.\left(-37\right)\)
\(=\left(-37\right).54+46.\left(-37\right)\)
\(=\left(-37\right).\left(54+46\right)=-37.100=-3700\)