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x+800=1000+800
x+800=1800
x=1800-800
c=1000
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x + 20 + 80 = 1000-800-0
x +100 = 200-0
x + 100 = 200
x = 200-100
x = 100
Duyệt đi , chúc bạn học giỏi
x + 20 + 80 = 1000 - 800 - 0
x + 100 = 200 - 0
x + 100 = 200
x = 200 - 100
x = 100
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200+400+600+800+1000
= 1000+ (200+800)+ (400+600)
= 1000+1000+1000
=3000
k mk đi mk k lại cho nek
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50 + 1000 + 500 - 800
= 1050 + 500 - 800
= 1550 - 800
= 750
k mik nha
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a) 200 x 5 – 800 = 200
b) 200 : 5 + 800 = 840
c) 1 000 : 2 – 500 = 0
d) 5 000 x 0 x 8 = 0
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x + 800 = 200 + 800 + 300
x + 800 = 1300
x = 1300 - 800
x = 500
Vậy x = 500
K mk nha
Mk k lại
x + 800 = 200 + 800 = 300
x + 800 = 1000 + 300
x + 800 = 1300
x = 1300 - 800
x = 500
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Cách 1: 800 + 800 + 800 + 800 Cách 2 : 800 + 800 + 800 + 800
= 1600 + 800 + 800 = 800 x 4
= 2400 + 800 = 3200
= 3200
Tích cho mk nhé !
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x+800=1000+800
x+800=1800
x=1800-800
x=1000
x+800=1000+800
x+800=1800