Question

30 + 70 + 5 + 5 + 90 +100=?

Answer 1

Tính nhanh :

\(30+70+5+5+90+100\)

\(=\left(30+70\right)+\left(5+5+90\right)+100\)

\(=100+100+100\)

\(=100\times3\)

\(=300\)

Answer 2

30+70+5+5+90+100

=100+5+5+100+90

=100.2+5+5+90

=200+5+5+90

=200+(5+5)+90

=200+10+90

=200+(10+90)

=200+100

=300

Answer 3

\(30+70+5+5+90+100\)

\(=\left(30+70\right)+\left(5+5+90\right)+100\)

\(=100+100+100\)

\(=300\)

Answer 4

 =300 nha bạn  

k mình nha

Answer 5

300 nha em

Answer 6

=(30+70) + (5+5+90) +100

=100+100+100

=300

Answer 7

30+70+5+5+90+100

= (30+70+100) + (5+5+90)

= 200+100

= 300

k bé  nha ^_^

Answer 8

30 + 70 + 5 + 5 + 90 + 100

= (30 + 70) + (5 + 5) + 100

= 100 + 100 + 100

= 300

ai k mk, mk k lại

mk thề, ko nói xạo

Answer 9

 =(30+70)+(90+5+5)+100

=100+100+100

=100*3

=300

Answer 10

\(30+70+5+5+90+100\)

\(=100+100+100\)

\(=300\)

Answer 11

\(30+70+5+5+90+100\)

\(=\left(30+70\right)+\left(5+5+90\right)+100\)

\(=100+100+100\)

\(=300\)