skkn rèn kỹ năng giải toán về tỷ số phần trăm cho hs lớp 5

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:2k96D*.%hcCZ(L(1
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 !*+,
 !"
#$%&'!%()
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(H(C8(O#`:,6=.C'
D1K%D"6**,!" OG+
/ -K(C*_`2m0&K+O::
,/(8,d( 6.M(V#1 (8
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(P,d( _`:I(86K,/A[_`:=
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<* 1(L: /.N

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*+,-
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-012#2/
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`C8 9=# `C8 9=# `C8 9=# `C8 9=#
sw  ml1su x sw1lu > en1>u w se1mu
9?6:6.&12 (8=#_`I**,!*
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,/%
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6,/%5P:1]2O(8
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$1(i%,!K" O;&KR

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,/%(,/%:C%?('DsnmmAsnms5!(<<
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=.C'D2&rO ("#6:
%26,"*,%1i<)8?6i
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f9 :1i/(C8_`!NFj1:1
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+.:D&w1t.*+(' &
'D
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926.N
o6N
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+,$('mnnu
,#<$('mnnu
9+,$.:6 .C'DN
mnnuAmu}>u-+,('0
@#<$:(2N
mnnufsu}mnsu-,#<('0
+$.:Dw1t .C'DN
mnsuN>u}msnu-+('0
X*%1w1t .C'DN
msnuAmnnu}snu-+('0

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w1tNsnJmnn}es
U.CNes
oeN+,(%6(m1>*+D&
snu,#<(2D&>u9<+,(%v
|^i<N5C(8+,(%6JO,#<
*+ &'D(<+,(%].%+
,(%('
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926.N
23#NU)snu}n1sQ>u}n1n>
,#<](*T,#<,#<.*,#<].aN
mfn1n>}m1n>

+](*T(,+.*+]N
mfn1s}m1s
@(2+,(%.*+,(%].aN
m1n>Nm1s}n1l
+,(%](*T(,+,(%]T6(N
mkn1l}n1m
9O(+1+,(%6(m1>&n1m+,(%]<
m1>@(2+,(%]N
m1>kn1m}m>
+,(%N
m>km1>}mw1s
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231N
U)m1>}
mn
m>

,#<]mnnu,#<].*,#<.aN
mnnuf>u}mn>u
+]mnnu+.*+].aN
mnnufsnu}msnu
@(2+,(%.*+,(%]N
mn>uNmsnu}lnu
+,(%]mnnu+,(%]6(N
mnnuAlnu}mnu
9O('+,(%6
mn
m>
&mnu]<
mn

m>

@(2+,(%].aN
mn
m>
Nmnu}m>
+,(%N
m>km1>}mw1s
U.CNmw1s
2369O2+,(%]6(mnu&mnu+,(%
]Tm1>&mnnu+,(%]T.C((,N
-m1>Jmnn0Nmn}m>
+,(%N
m>km1>}mw1s
U.CNmw1s
2379Os2+,(%]6(mnu& +,
(%]mnnu=.C+,(%]T6(N
mnnuNmnu}mn
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