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\(76.5+76+76+76.3\)
\(=76.5+76.2+76.3\)
\(=76.\left(5+2+3\right)\)
\(=76.10\)
\(=760\)
học vui ĐẶNG PHƯƠNG THẢO
76 x 5 + 76 + 76 + 76 x 3
= 76 x ( 5 +1+1+3)
=76 x 10
=760
76 x 102 - 76 - 76
=76 x 102 - 76 x 1 - 76 x 1
=76 x (102-1-1)
=76 x 100
=7600
Thanh vân :
76 x 56 + 76 x 43 + 76
= 76x ( 56 + 43 + 1 )
= 76 x 100
= 7600
(45+24-55+76)x(1/5+7/8+7/3+5/7+8/7)
=(45+55-24+76)x(1/5+7/8+7/3+5/7+8/7)
=0 x (1/5+7/8+7/3+5/7+8/7)
=0
a) 2459 - ( 400 + 459 )
= 2459 - 400 - 459
= 2000 - 400
= 1600
b) 435 x 25 +76 x 435 - 435
= 435 x 25 + 76 x 435 - 435 x 1
= 435 ( 25 + 76 - 1 )
= 435 x 100
= 43500
c) 36 x 49 + 51 x 36
= 36 ( 49 + 51 )
= 36 x 100
= 3600
= [ 50 x ( 76 - 24 + 22)] x 2
= 50 x 74 x 2
= (50 x 2) x 74
= 100 x 74
= 7400.
a) \(\text{2459 - (400 + 459)}\)
\(\text{= 2459 - 859}\)
\(\text{= 1600}\)
b) \(435\times25+76\times435-435\)
\(=435\times\left(25+76-1\right)\)
\(=435\times100\)
\(=43500\)
c) \(35\times49+51\times36\)
\(=35\times49+51\times\left(35+1\right)\)
\(=35\times49+51\times35+51\)
\(=35\times\left(49+51\right)+51\)
\(=35\times100+51\)
\(=3500+51\)
\(=3551\)
a) 2459 - (400 + 459)
= 2459 - 400 - 459
= (2459 - 459) - 400
= 2400 - 400
= 2000
b) 435 x 25 + 76 x 435 - 435
= 435 x (25 + 76 - 1)
= 435 x 100
= 43500
c) 35 x 49 + 51 x 36
= 1715 + 1836
= 3551
a) 2459 - ( 400 + 459 )
= ( 2459 - 459 ) - 400
= 2000 - 400
= 1600
b) 435 x 25 + 75 x 435
= 435 x ( 75 + 25 )
= 435 x 100
= 43 500
c) 35 x 49 + 51 x 35
= 35 x ( 49 + 51 )
= 35 x 100
= 3500
=76x(49+50+1)
=76x100
=7600
76 * ( 49 + 50 + 1 )
= 76 * 100
= 7600