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a) 50+3x(25-16)2+150
=50+3x92+1
=50+3x81+1
=50+243+1
=294
b)22x52-35/32
=(2x5)2-35-2
=102-33
=100-27
=73
c)80-[130-(12-4)2 ]
=80-[130-82 ]
=80-[130-64]
=80-66
=14
d)100:[2x(52-35-8)]
=100:[2x9]
=100:18
=100/18
e)24:{300:[375-(150+15x5)]}
=24:{300:[375-(150+75)]}
=24:{300:[375-225]}
=24:{300:50}
=24:6
=4
112:111 = 121: 1=121
124:123-112:110 =121-121=12-121=-109
52.(20)2016=25.12016=25.1=25
(22)3.42.12016=43.42.1=64.42=2688
42:160-(32)2=16:1-92=16-81=-65
152:52=225:25=9 hoặc (15:5)2=32=9
1005:505=(100:50)5=25=32
52:22=25:4=6,25
252:42=625:16=39,0625
53:23=125:8=15,625
25:55=32:3125=0,01024
Bạn Cự Giải cute ơi , tk giúp mk nhé !
a)2019-5{70+9[37-(32+1)]}=2019-5{70+9[37-33]}=2019-5{70+9.4}=2019-5.106=2019-530=1489
b)3[25-(9+8)]-25(8+1)=3[25-17]-25.9=3.8-225=-201
a.17 . 85 + 25 . 17 + 1200
=17.(85+25)+1200
=17.110+1200
=1870+1200
=3070
b.62 : 4 . 3 + 2 . 52
=36:4.3+2.25
=27+50
=77
c.5 . 42 - 18 : 32
=5.16-18:9
=80-2
=78
d.3 . 52 - 16 : 23 + 34 : 33
=3.25-16:8+3
=75-2+3
=76
e.220 - [ 32 . 33 - ( 12 - 70 ) 2]
=220-35+112
=220-243+121
=98
j. 49 . 73 + 49 . 51 - 49 . 24
=49.(73+51-24)
=49.100
=4900
Con bấm mỏi suốt đấy mấy má
nhầm
a) 17 . 85 + 25 . 17 + 1200
=(17.85+25.17)+1200
=17(85+25)+1200
=17.110+1200
=1870+1200
=3070
b) 62 : 4 . 3 + 2 . 52
=36:4.3+2.25
=9.3+50
=27+50
=77
c) 5 . 42 - 18 : 32
=5.16-18:9
=80-2
=78
d) 3 . 52 - 16 : 23 + 34 : 33
=3.25-24:23+3(4-3)
=75-2(4-3)+31
=75-21+3
=75-2+3
=76
e) 220 - [ 32 . 33 - ( 12 - 70 ) 2 ]
=220-[3(2+3)-(12-1)2]
=220-(35-112)
=220-(243-121)
=220-122
=98
j) 49 . 73 + 49 . 51 - 49 . 24
=49(73+51-24)
=49.100
=4900
33:32+25:16-1000
=31+25:16-1000
=3+32:16-1
=3+2-1
=5-1
=4
(52.5+20.52):25
=(25.5+20.25):25
=(125+100):25
=225:25
=9