Question

100x9 + 100x10 + 2000

Answer 1

100x9 + 100x10 + 2000

= 900+ 1000 +2000

= 1900 +2000

= 3900

Answer 2

100x9+100x10+2000

=100x9+100x10+100x20

=100x(9+10+20)

=100x39

=3900

Answer 3

100x9 + 100x10 +2000 = 900 + 1000 +2000 =3900

Answer 4

=900+1000+2000

=900+3000

=3900

Answer 5

100.9+100.10+2000

=900+1000+2000

=1900+2000

=3900

Answer 6

100 x 9 + 100 x 10 + 2000

= 900 + 1000 + 2000

= 1900 + 2000

= 3900

k nha ^-^

Answer 7

=900+1000+2000

=1900+2000

=3900