(1)原式=65×(100+2)
=6500+130
=6630 (2)原式=8.23-3.23-2.67
=5-2.67
=2.33
(3)原式=76×(125×4)
=76×500
=38000 (4)原式=(63+30)-29
=63+(30-29)
=64
(1)原式=65×(100+2)
=6500+130
=6630 (2)原式=8.23-3.23-2.67
=5-2.67
=2.33
(3)原式=76×(125×4)
=76×500
=38000 (4)原式=(63+30)-29
=63+(30-29)
=64