Question

Answer 1

a: \(=15\left(16+92-8\right)=15\cdot100=1500\)

b: \(=5.28\cdot4+4.72\cdot4=4\cdot10=40\)

Answer 2

a) 15 x 16 + 15 x 92 -8 x 15

= 15 x ( 16 +92 - 8 )

= 15 x 100

= 1500

b) 5,28 :0,25 + 4,72 x 4

= 5,28 x 4 + 4,72 x 4

=4 x ( 5,28 + 4,72)

= 4 x 10

= 40