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a) 9,56 - 3.76 1,24 = 5,8 - 1,24 = 4,56
b) 5,46 - ( 2,5 - 1,04 ) = 5,46 - 1,46 = 5.3
c) 7,52 - 3,61 + 2,09 = 7,52 - 5,7 = 1,82
d) 3,78 x 12,5 - 3,78 x 2,5 = 3,78 x ( 12,5 - 2,5 ) = 3,78 x 10 = 37,8
e)13,5/12,5/8=(13,5/12,5)/8=1,08/8=0,135
hrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
96,73 * 5348 = 517 312,04
36,98 : 5,32 = 6,95 (dư 0,60)
48,54 * 89,6 = 4349,184
998,6 : 5,3 = 188,41 (dư 2,7)
873,7 : 63 = 13,86 ( Dư 52 )
5,217 * 8,62 = 44,97054
23,1*30,5=704,55
60,9*1,32=80,388
2,34*4,56=10,6704
14,5*23,4=339,3
56,7*10,8=612,36
9,56*20,7=197,892
8,79*56,4=495,756
36,7*45,7=1677,19
67,8*34,9=2366,22
67,9*4,67=317.093
89,8*3,09=277,482
89,6*2,07=185,472
55,8*2,43=135,594
46,8*1,23=57,564
x+2,47=5,09
x=5,09-2,47
x=2,62
8,23-x=4,56
x=8,23-4,56
x=3,67
a) x + 2,47 = 5,09
x = 5,09 - 2,47
x = 2,62
8,23 - x = 4,56
x = 8,23 - 4,56
x = 3,67
=( 7,56 nhân 8)+ 9,56+2
= 60,48 + 9,56+2
=70,40+2
=72,40
7,56 + 9,56 x 8 + 9,56 + 2 = 7,56+7648+9,65+2
= 7667,21