Question

35 * 34 + 35 * 34 + 65 * 75 + 65 * 45

Answer 1

35 * 34 + 35 * 34 + 65 * 75 + 65 * 45

= 34* ( 35+35) + 65* ( 75 + 45)

= 34 * 70 + 65* 120

= 2380 + 7800

= 10180

Answer 2

\(=35.\left(34+34\right)+65.\left(75+45\right)\)

\(=35.68+65.120=2380+7800=10180\)

Answer 3

\(35\times34+35\times34+65\times75+65\times45\)

\(=\)\(34\times\left(35+35\right)+65\times\left(75+45\right)\)

\(=\)\(34\times70+65\times120\)

\(=\)\(2300+7800\)

\(=\)\(10180\)