Question

tính bằng cách thuận tiện nhất 

 38,25 - 18,25 + 21,64 - 11,64 + 9,93

Answer 1

bạn nào viết đầy đủ đúng mình sẽ k cho 

thank you

Answer 2

38,25-18,25+21,64-11,64+9,93

=(38,25-18,25)+(21,64-11,64)+9,93

=20+10+9,93

=30+9,93

=39,93

Answer 3

38,25-18,25+21,64-11,64+9,93

=(38,25-18,25)+(21,64-11,64)+9,93

=20+10+9,93

=39,93

k nha

Answer 4

(38.25-18.25)+(21.65-11.64)+9.93

=20+10+9.93

=39.93

Answer 5

= 39,93 nhé !

Answer 6

[38,25-18,25]+[21,64-11,64]+9,93

=20+10+9,93

=30+9,93

=39,93

Answer 7

= 39,93

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