Question

Find by using distributive property . a) 8×103 b) 13×98

Answer 1

a)
13*98
=(10+3)(90+8)
=90(10+3)+8(10+3)
=900+270+80+24
=1274

b)
8*103
=(4+4)(100+3)
=4(100+3)+4(100+3)
=400+12+400+12
=824

Answer 2

Step-by-step explanation:

a) 8×103

=(10-2)×(100+3)

= 10(100+3)-2(100+3)

=1000+30-200-6

= 824

b) 13×98

=(10+3)×(100-2)

= 10(100-2)+3(100-2)

= 1000-20+300-6

= 1274