发布网友
共1个回答
热心网友
(1)376+28+172+124,
=(376+124)+(28+172),
=500+200,
=700;
(2)43000÷8÷125,
=43000÷(8×125),
=43000÷1000,
=43;
(3)99×38+38,
=38×(99+1),
=38×100,
=3800;
(4)25×104,
=25×(100+4),
=25×100+25×4,
=2500+100,
=2600;
(5)8×(29×l25),
=8×125×29,
=1000×29,
=29000;
(6)688-534+112-166,
=(688+112)-(534+166),
=800-700,
=100;
(7)156×l0l-156,
=156×(101-1),
=156×100,
=15600;
(8)1-83-17,
=1-(83+17),
=1-100,
=;
(9)26×148-48×26,
=26×(148-48),
=26×100,
=2600.