Toán Lớp 7: 5√16 – 4√9 + √25 – 0,3 √400
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Toán Lớp 7: 5√16 – 4√9 + √25 – 0,3 √400
giúp mik!
Comments ( 2 )
= 5 . 4 – 4. 3 + 5 – $\frac{3}{10}$ . 20
= 20 – 12 + 5 – 6
= 13 – 6
= 7
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