Tính nhanh:
(56 x27 + 56 x 35) : 62
(56 x 27 + 56 x 35) : 62
Tính nhanh
\(\left(56.27+56.35\right):62=56\left(27+35\right):62=56.62:62=56\)
\(\left(56.27+56.35\right):62\)
\(=\left[56.\left(27+35\right)\right]:62\)
\(=56.62:62\)
\(=56.1\)
\(=56\)
\(\left(56\times27+56\times35\right):62\)
\(=56\times\left(27+35\right):62\)
\(=56\times62:62\)
\(=56\)
HOK TOT
tính bằng cách hợp lí nhất:
(56 x 27 + 56 x 35) : 62
=........................................
=.........................................
=........................................
`= 56 \times (27+35) \div 62`
`= 56 \times 62 \div 62`
`= 56 \times 1 = 56`
C = ( 56 x 27 + 56 x 35 ) :62
C=(56 x 27 +56 x 35) : 62
C=56 x (27 + 35) :62
C=56 x 62 : 62
C=56 x 1
C=56
Các bạn nam thanh nữ tú ơi nha
\(C=\left(1512+1960\right):62\)
\(3472:62=56\)
C = (56 × 27 + 56 × 35) : 62
C = 56 × (27 + 35) : 62
C = 56 × 62 : 62
C = 56
Tính:
a) (37 – 18) + 17
b) 56 – (35 – 16)
c) (6 + 5) x 8
d) 36 : (62 – 56)
a) (37 – 18) + 17 = 19 + 17 = 36
b) 56 – (35 – 16) = 56 – 19 = 37
c) (6 + 5) x 8 = 11 × 8 = 88
d) 36 : (62 – 56) = 36 : 6 = 6
Đề bài : tính nhanh
132 x 99 + 132
( 56 x 27 + 56 x 35 ) : 62
2015 x ( 67 + 53 ) - 2005 x ( 53 + 67 )
2009 x 2009 - 2010 x 2008
4357 x 267 x ( 630 - 315 x 2 )
ai làm xong nhanh nhất và đúng thì mình tick cho
a, 132 x 99 + 132
= 132 x 99 + 132 x 1
= 132 x ( 99 + 1 )
= 132 x 100 = 13200
b, ( 56 x 27 + 56 x 35 ) : 62
= 56 x ( 27 + 35 ) : 62
= 56 x 62 : 62
= 62 : 62 x 56
= 1 x 56 = 56
c, 2015 x ( 67 + 53 ) - 2005 x ( 53 + 67 )
= 2005 + 10 x 120 - 2005 x 120
= 2005 x 120 - 2005 x 120 + 10
= 2005 x ( 120 - 120 ) + 10
= 2005 x 0 + 10
= 0 + 10 = 10
d, 2009 x 2009 - 2010 x 2008
= 2009 x 2009 - 2009 x 2009
= 2009 x ( 2009 - 2009 )
= 2009 x 0
= 0
e, 4357 x 267 x ( 630 - 315 x 2 )
= 4357 x 267 x ( 630 - 630 )
= 4357 x 267 x 0
= 4357 x 0
= 0
a. 132 x 99 + 132
= 132 x (99 + 1)
= 132 x 100
= 13200
b. (56 x 27 + 56 x 35) : 62
= 56 x (27 + 35) : 62
= 56 x 62 : 62
= 56
c. 2015 x (67 + 53) - 2005 x (53 + 67)
= (2015 - 2005) x (67 + 53)
= 2010 x 120
= 241200
a, 132 x 99 + 132
= 132 x 99 + 132 x 1
= 132 x ( 99 + 1 )
= 132 x 100 = 13200
b, ( 56 x 27 + 56 x 35 ) : 62
= 56 x ( 27 + 35 ) : 62
= 56 x 62 : 62
= 62 : 62 x 56
= 1 x 56 = 56
c, 2015 x ( 67 + 53 ) - 2005 x ( 53 + 67 )
= 2005 + 10 x 120 - 2005 x 120
= 2005 x 120 - 2005 x 120 + 10
= 2005 x ( 120 - 120 ) + 10
= 2005 x 0 + 10
= 0 + 10 = 10
d, 2009 x 2009 - 2010 x 2008
= 2009 x 2009 - 2009 x 2009
= 2009 x ( 2009 - 2009 )
= 2009 x 0
= 0
e, 4357 x 267 x ( 630 - 315 x 2 )
= 4357 x 267 x ( 630 - 630 )
= 4357 x 267 x 0
= 4357 x 0
= 0
(56*27+56*35):62
\(\left(56x27+56x35\right):62\)
\(=\left[56x\left(27+35\right)\right]:62\)
\(=\left[56x62\right]:62\)
\(=56x1=56\)
(56 ×27 +56 ×35 ) : 62
=(56 x (27 +35)) :62
=(56 x 62) : 62
=3472 : 62=56
(56 x 27 + 56 x 35) : 62
= 56 x (27 + 35 ) : 62
= (56 x 62) : 62
= 3472 : 62
= 56
(56 ×27 +56 ×35 ) : 62
= 56x(27+35):62
= 56x62:62
= 56x1
=56
(56*27+56*35)/62
(56*27+56*35)/ 62
=56* (27+35)/2
=56* 62/2
=1736.
( 56 × 27 + 56 ×35):62
( 56 x 27 + 56 x 35 ) : 62
= 56 x ( 27 + 35 ) : 62
= 56 x 62 : 62
= 56 x ( 62 : 62 )
= 56 x 1
= 56
( 56 × 27 + 56 ×35):62
=(27+35)x56:62
= 62x56:62
= 1x56
=56