Question

a) \(\frac{5}{8}+\frac{1}{2}:\frac{3}{7}\)

b) 125 + 985 - 452 x 10

c) 1+ 2 + 3 +  4 + 5 + 6 + 7 + 8 + 9 + 10

Câu c) tính nhanh nhé !

Answer 1

a ) \(\frac{9}{8}:\frac{3}{7}\)

= \(\frac{9}{7}X\frac{3}{8}\)

= 

Answer 2

A)  \(\frac{5}{8}+\frac{7}{6}\)

= 

Answer 3

a) \(\frac{5}{8}+\frac{7}{6}\)

=  \(\frac{68}{48}\)

Nếu rút gọn thì bằng:\(\frac{17}{12}\)

b) 125 + 985 - 452 x 10

= 1110 - 4520

= - 3410

c) 1+ 2 + 3 +  4 + 5 + 6 + 7 + 8 + 9 + 10

= (1 + 9 ) + (2 + 8 ) + (3 + 7 ) + (4 + 6 ) + ( 5 + 10 )

= 10         +    10      +    10     +    10      +     10

= 10 x 5

= 50

Answer 4

a) 68/48

b) -3410

c) 50 

Answer 5

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Answer 6

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Tay Du Ky

Answer 7

Hello

 

Answer 8

hello