36 x 57 - 36 x 47 + 63 x 62 - 63 x 52
= 36 x ( 57 - 47 ) + 63 x ( 62 - 52 )
= 36 x 10 + 63 x 10
= 10 x ( 63 + 36 )
= 10 x 99
= 990
36x57—36x47+63x62—63x52
=36x(57—47)+63x(62—52)
=36x10+63x10
=10x(36+63)
=10x99
=990
36 x 57 - 36 x 47 + 63 x 62 - 63 x 52
= 36 x (57-47) + 63 x (62-52)
= 36 x 10 + 63 x 10
= (36+63) x 10
= 99x10
= 990
36*57-36*47+63*62-63*52=36*(57-47)+63*(62-52)=36*10+63*10=360+630=990