Lời giải:
$89,5\times 9+89+50\text{%}$
$=89,5\times 9+89,5$
$=89,5\times (9+1)=89,5\times 10=895$
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Lời giải:
$89,5\times 9+89+50\text{%}$
$=89,5\times 9+89,5$
$=89,5\times (9+1)=89,5\times 10=895$
a) 89,5 …….89,49 b) 732,5 …………732,500
c) 5/3.........3/5 d)4/7...................4/9
x * 55 = 89,5
Tìm x:
a/ x-5 : 2,5 + 8 = 9
b/ 90: 5 + x = 8
c/ 50- x * ( 7 * 2) = 89
30,6 *X - 7,54 *X = 89,5+19,54
2015,5-(105-89,5).2 +12,5:3/2 = ?
1.Tính nhanh
a, A=8,95*90+89+50%
Bài 1: Tính
a) 38% + 29% b) 89,5% - 22,36 % c) 84% : 12 -2% d) 84% : 12 -2%
số?
89,5-54,6..........×2.............-................29,14+.............47,4:............15,8
tính nhanh
A 89:0,25+89:0,2+89
B 24:12+36:6+18:9
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