30 + 30 + 40 + 100 + 200 + 100 = ?
100+100+200-600+400-90-64+50+4-80+20-6+3+3-50+10+200-90-90-20+123-100-20-3+50-49-1+60-30-30+741-700-40-1=???
Ai giải ra bài toán này mình tick cho
100+100+200-600+400-90-64+50+4-80+20-6+3+3-50+10+200-90-90-20+123-100-20-3+50-49-1+60-30-30+741-700-40-1=108
chắc 100% luôn mik dùng máy tính mà mik nhanh nhất phải k mik đó các abnj ko được cặp bi đâu phải tính nếu đúng thì tích mik nha
mệt quá!
20+30+40+50+60+70+80+90+100+200
= ( 20 + 80 ) + ( 30 + 70 ) + ( 40 + 60 ) + 90 + 100 + 200
= 100 + 100 + 100 + 90 + 100 + 200
= 690
thế này bạn còn ko biết, dễ mà
dạng này tớ gặp đi gặp lại rùi
10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 +100 + 200 + 300 =
Tính nhanh
100 + 200 + 300 + 400 + 500 = ?????
10 + 20 + 30 + 40 + 50 = ???
100+200+300+400+500
=(100+400)+(200+300)+500
=500+500+500
=500x3
=1500
10+20+30+40+50
=(10+40)+(20+30)+50
=50+50+50
=50x3
=150
k mình nha
100 + 200 + 300 + 400 + 500
= (200 + 300 + 500) + 400 + 100
= 1000 + 400 + 100
= 1500
10 + 20 + 30 + 40 + 50
= 10 + 40 + (20 + 30 + 50)
= 50 + 100
= 150
100 - 200 + 30 - 7 + 27 - 100 + 300 - 20 + 30 =
100 - 200 + 30 - 7 + 27 - 100 + 300 - 20 + 30 = 160
Ủng hộ mình lên 0 điểm nha
100 - 200 + 30 - 7 + 27 - 100 + 300 - 20 + 30 = -100 + 30 - 7 + 27 - 100 + 300 - 20 + 30
= -70 - 7 + 27 - 100 + 300 - 20 + 30
= -77 + 27 - 100 + 300 - 20 + 30
= -50 - 100 + 300 - 20 + 30
= -150 + 300 - 20 + 30
= 150 - 20 + 30
= 130 + 30
= 160
tìm X biết :
a) x+60+40=200
b) (x+25)+50=100:2+30
a) x +60+40 =400
x = 400-40-60
x =300
b) (x+25) + 50 = 100:2 +30
(x+25) +50 = 50+30=80
x+25 = 80-50=30
x =30-25
x = 5
a.x+60+40=200
x+100=200
x=200-100
x=100
b.x+25+50=100:2+30
x+75=50+30
x+75=80
x=80-75
x=5
mk nhanh nhất
a) x + 100 = 200
x = 200 - 100
x = 100
b) x + 25 + 50 = 50 + 30
x + 75 = 80
x = 80 - 75
x = 5
200 : 50 =?
100 : 20 =?
300 : 30 =?
400 : 10 =?
500 : 40=?
200÷50=4
100÷20=5
300÷30=3
400÷10=40
500÷40=12.5
Nếu thấy đúng cấc nhe
200 :50 =4
100 : 20 =5
300:30=10
400:10=40
500:40= 12,5
ủng hộ nha
200 : 50 = 4
100 : 20 = 5
300 : 30 = 10
400 : 10 = 10
500 : 40 = 150
100 + ( 100 - 100 ) =? : 200 + ( 1000000- 100000 )=? : 300 - ( 200- 100 ) =? ; 30 + ( 22 : 2 ) = ?
100 + ( 100 - 100 ) =100
200 + ( 1000000- 100000 )=900200
300 - ( 200- 100 ) =200
30 + ( 22 : 2 ) =41
100 + (100 - 100)
= 100 + 0
= 100
200 + (1000000 - 100000)
= 200 + 900000
= 900200
300 - (200 - 100)
= 300 - 100
= 200
30 + (22 : 2)
= 30 + 11
= 41
100 + (100 - 100 )
= 100 + 0
= 100
200 + (1000000 - 100000)
= 200 + 900000
= 900200
300 - (200 - 100)
= 300 - 100
= 200
30 + (22 : 2)
= 30 + 11
= 41
Tính giá trị của biểu thức:
a) 90 – ( 30 – 20) = ..........................
= ..........................
90 – 30 – 20 = ..........................
= ..........................
b) 100 – (60 + 10) = ..........................
= ..........................
100 - 60 + 10 = ..........................
= ..........................
c) 135 – (30 + 5) = ..........................
= ..........................
135 – 30 – 5 = ..........................
= ..........................
d) 70 + (40 – 10) = ..........................
= ..........................
70 + 40 – 10 = ..........................
= ..........................
a) 90 – ( 30 – 20) = 90 – 10
= 80
90 – 30 – 20 = 60 - 20
= 40
b) 100 – (60 + 10) = 100 – 70
= 30
100 - 60 + 10 = 40 + 10
= 50
c) 135 – (30 + 5) = 135 – 35
= 100
135 – 30 – 5 = 105 – 5
= 100
d) 70 + (40 – 10) = 70 + 30
= 100
70 + 40 – 10 = 110 -10
= 100
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