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50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50
= 50 . 10
= 500
kết pạn với mk lun nha!
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a) 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 = 50 x 12
= 600
b) 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 = 100 x 9
900
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50 + 50 - 50 - 50 =
= 100 - 50 - 50
= 50 - 50
= 0
Học tốt#####
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20 + 20 + 20 + 20 + 20 + 50 + 50 + 50 + 50
= 20 x 5 + 50 x 4
= 100 + 50 x 4
= 100 + 200
= 300
x + 50 - 20 = 50 + 20
x + 50 - 20 = 70
x + 50 = 70 + 20
x + 50 = 90
x = 90 - 50
x = 40
Ủng hộ tíck mik nha !!!
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x + 50 = 50 + 50
x + 50 = 100
x = 100 - 50
x = 50
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x + 20 = 50 + 50 + 50
x + 20 = 50 x 3
x + 20 = 150
=> x = 130.
x+20=3x50=150
x=150-20=130
x=130
thu lai 130+20 = 50+50+50=150
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50 - 50 - 50 + 100 - 90 + 58 - 60 = 8
Ủng hộ mk nhaNguyễn Quốc Huy
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50+50+50x2x3
100+100x3
=100+300
=400
mình trả lời đầy đủ k nhé
50 + 50 - 50 * 50 = 100 - 2500 = -2400
= 100 - 2500
= ( - 2400 )