số tiềm được giảm là:

15 750 000 : 100 x 10 = 1 575000 (đồng)

giá bán của chiếc máy tính đó sau khi giảm là:

15 750 000 - 1 575 000 = 14 175 000 (đồng)

                                      đáp số : 14 175 000 đồng

a) 0,125 x7,21 x80

= 0,125 x 80 x7,21

= 10 x 7,21

72,1

b) (7,3 +92,7)x 0,001

100 x0,001

=0,1

31 ,6 

+17,92

49, 52

315,7

-12,23

303,47

3,6

x4,1

  36

144

14,30

32,4 : 4,5 = 7,2

63 tạ = 6,3 tấn

721 mm = 0,721 m 

9km2 7ha = 9,07 km2

4/4ml = 4,004 l

50 000

truyện Tấm Cám 

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