a) 58 . 75+58 . 50 - 58 . 52
=58 . ( 75+50+52 )
=58 . 177
=10266
b) 27 . 39 + 27 . 63 - 2 . 27
=27 . ( 39+63-2 )
=27 . 100
=2700
f) 48 . 19 + 48 . 115 + 134 . 52
=48 . ( 19+115 )+134 . 52
=48 . 134 + 134 . 52
=( 48+52 ) . 134
=100 . 134
=13400
g) 27 . 121 - 87 . 27 + 73 . 34
=27 . ( 121-87 )+ 73 . 34
=27 . 34 + 73 . 34
=( 27+73 ) . 34
=100 . 34
=3400
k) 35 . 23 + 35 . 41 + 64 . 65
=35 . ( 23+41 ) + 64 . 65
=35 . 64 + 64 . 65
=64 . ( 35+65 )
=64 . 100
=6400
l) 29 . 87 - 29 . 23 + 64 . 71
=29 . ( 87-23 )+ 64 . 71
=29 . 64 + 64 . 71
=64 . ( 29+71 )
=64 . 100
=6400
CHO MIK 5 SAO VÀ CTLHN NHA BẠN
