Question

tinh nhanh  

997+86 

67.99

 

 

Answer 1

997+86=1083

67.99=6633

Answer 2

997 + 86 = 1083

67 . 99 = 6633

Answer 3

1083

6633

Answer 4

997+86 =1000-3+90-4=(1000+90)-(3+4)=1090-7=1083

67.99=67.(100-1)=67.100-67=6700-67=6633

Answer 5

997+86 =1000-3+90-4=(1000+90)-(3+4)=1090-7=1083

67.99=67.(100-1)=67.100-67=6700-67=6633

Answer 6

997+86 =1000-3+90-4=(1000+90)-(3+4)=1090-7=1083

67.99=67.(100-1)=67.100-67=6700-67=6633

Answer 7

* 997 + 86 

= (1000 - 3) + 86

= 1000 + 83

= 1083

* 67 x 99

= 67 x (100 - 1)

= 67 x 100 - 67 x 1

= 6700 - 67

= 6633

(Tíck cho mìk vs nhé!)

Answer 8

997 + 86 = 997 + 3 + 83 = 1000 + 83 = 1083

67 x 99 = 67 x ( 100 - 1) = 67 x 100 - 67 = 6700 - 67 = 6633

Answer 9

997+86= 997+3+83=1000+83=1083