870×65+87×350
=87×650+87×350
=87×(650+350)
=87×1000
=87000
9999×7778+3333×6666
=9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000
44×36+44×65-44
=44×(36+65-1)
=44×100
=4400
888×6+76×222
=222×24+76×222
=222×(24+76)
=222×100
=22200
870×65+87×350
=87×650+87×350
=87×(650+350)
=87×1000
=87000
9999×7778+3333×6666
=9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000
44×36+44×65-44
=44×(36+65-1)
=44×100
=4400
888×6+76×222
=222×24+76×222
=222×(24+76)
=222×100
=22200