Question

Tính

1) 12.2.25+29.25+59.25

2) 25.(231+69)+72.(231+69)

3) 39.(250+87)+64.(240+97)

4) 36.28+36.82+64.69+64.41

Answer 1

1) 12.2.25+29.25+59.25

=24.25+29.25+59.25

=25(24+29+59)

=25.112

=2800

2) 25.(231+69)+72.(231+69)

=25.300+72.300

=300(25+72)

=300.97

=29100

3) 39.(250+87)+64.(240+97)

=39.337+64.337

=337.(39+64)

=337.103

=34711

4) 36.28+36.82+64.69+64.41

=36.(28+82)+64.(69+41)

=36.110+64.110

=110(36+64)

=110.100

=11000

Answer 2

Đăng từng bài thôi nha bạn.

Answer 3

12 x 2 x 25 + 29 x 25 + 59 x 25 = 2800

25 x  ( 231 + 69 ) + 72 x ( 231 + 69 ) = 29100

39 x ( 250 + 87 ) + 64 x ( 240 + 97 ) = 34711

 36 x 28 + 36 x 82 + 64 x 69 + 64 x 41 = 11000

Cho mik xin đúng nhá