(1)25×24-14
=600-14
=586 (2)(138-59)×15
=79×15
=1185 (3)48×52÷2
=48×26
=1248
(4)3.7+1.8+2.6
=5.5+2.6
=8.1 (5)7.9-(1.9+4.7)
=7.9-6.6
=1.3 (6)40-40÷8
=40-5
=35
(1)25×24-14
=600-14
=586 (2)(138-59)×15
=79×15
=1185 (3)48×52÷2
=48×26
=1248
(4)3.7+1.8+2.6
=5.5+2.6
=8.1 (5)7.9-(1.9+4.7)
=7.9-6.6
=1.3 (6)40-40÷8
=40-5
=35