20 + 20 . 10 . 10 = ?
Ai nhanh nhất mình tk cho.
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10 + 20 + 20 + 20 + 20 + 20 + 90 + 80 + 70 + 60 + 50 + 40 + 20 + 10
= 10 + (20 x 6) + (90 + 10) + (80 + 20) + 70 + (60 + 40)
= 10 + 120 + 100 + 100 + 70 + 100
= 530
10 -20 = 80 - 20 = 60 + 50 = 110 + 60 = 170 - 70 = 100 - 100 = 0 + 90 = 90 - 80 = 10 - 10 = 0
đáp số : 0
x + 10 = -20
x = -20 - 10
x = - 30
mk k rui nha,kb lun nha
Số cần tìm là:
20 000 000 x 1 = 20 000 000
Vậy kết quả vẫn không thay đổi
Đáp số:.....
10^20=1000...000(có 20 chữ số 0 )
vì 10^x=100...0
x chữ số 0
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Tk cho mình nhé
20 + 20 x 10 x 10 = ?
20 + 2000 = 2020
k mình nhé !!!
\(20\)\(+\)\(20\)\(.\)\(10\)\(.\)\(10\)\(=\)\(2020\)