Question

Tính nhanh

270-(3²×2+7¹⁵÷7¹³)

Answer 1

`270 - (3^2 xx 2 + 7^15 : 7^13)`

`= 270 - (9 xx 2 + 7^(15-13))`

`= 270 - (18 + 7^2)`

`= 270 - (18 + 49)`

`= 270 - 67`

`= 203`

Answer 2

270 - ( 3² . 2 + 7¹⁵ + 7¹³ )

= 270 - ( 9 . 2 + 7² )

= 270 - ( 18 + 49 )

= 270 - 67

= 203

Answer 3

5+5=

Answer 4

lớp 1

Answer 5

Ngu

Answer 6

bb

Answer 7

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