Question

35 nhân 18 -9 nhân 70 +100

Answer 1

35x18-9x70+100

=100

Answer 2

`35xx18-9xx70+100`

`= 35xx2xx9-9xx70+100`

`= 70xx9-70xx9+100`

`= 100`

Answer 3

35x18-9x70+100

=630-630+100

=0+100

=100

Answer 4

\(35.18-9.70+100=35.2.9-9.70+100=70.9-9.70+100=\left(70-70\right).9+100=100\)