一、列竖式计算
(1)0.26×7 （2）3.105×18 (3) 63.08×25 (4)11.4×19 (5)1.59×4 (6) 4.3×2.8 (7) 0.08×125 (8)24×0.5 (9)25×0.125 (10) 4.87×100 (11)28×1.5 (12)0.82×2.3 (13) 3.95×42 (14)2.073×15 (15)3.7×2.5 (16)79×0.236 (17)1.8×3.08 (18)19.5×2.6 (19)0.36×560 (20)3.77×1.8 (21)5.22×0.3 (22)4.67×0.9 (23) 5.6×6.5 (24)4.88×2.9 (25)5.61×2.1 (26)8.9×2.4 (27)4.268×1.7 (28)8.78×83 (29) 9.246×2.85 (30)7.658×85 (31)36.02×0.3 (32) 5.61×4.3 (33) 27.5×5.7 (34) 2.5×0.88 (35)3.77×1.8 (36) 9.77×2.4
(37) 0.072×0.15 (38)0.18×8.45 (39) 0.39×2.9 (40) 0.082×0.14
二、简便方法计算
(1)4.56×0.4×2.5 (2)12.5×2.7×0.8 (3)12.5×3.2×0.25 (4)2.5×3.2 (5)12.5×56 (6)25×0.36 (7)12.5×8.8 (8)99×0.35 (9)3.7×1.8-2.7×1.8 (10)1.08×9+1.08 (11)0.25×48 (12) 95.7×0.28+6.3×0.28-0.28×2 (13)12.5×88 (14)9.16×1.53-0.53×9.16 (15)5×6.03×0.2 (16)32×1.25 (17)0.45×99 (18)53×10.1 (19)4.2×6.51+3.49×4.2 (20)2.5×0.8×0.4×1.25
一、列竖式计算
(1)0.26×7 （2）3.105×18 (3) 63.08×25 (4)11.4×19 (5)1.59×4 (6) 4.3×2.8 (7) 0.08×125 (8)24×0.5 (9)25×0.125 (10) 4.87×100 (11)28×1.5 (12)0.82×2.3 (13) 3.95×42 (14)2.073×15 (15)3.7×2.5 (16)79×0.236 (17)1.8×3.08 (18)19.5×2.6 (19)0.36×560 (20)3.77×1.8 (21)5.22×0.3 (22)4.67×0.9 (23) 5.6×6.5 (24)4.88×2.9 (25)5.61×2.1 (26)8.9×2.4 (27)4.268×1.7 (28)8.78×83 (29) 9.246×2.85 (30)7.658×85 (31)36.02×0.3 (32) 5.61×4.3 (33) 27.5×5.7 (34) 2.5×0.88 (35)3.77×1.8 (36) 9.77×2.4
(37) 0.072×0.15 (38)0.18×8.45 (39) 0.39×2.9 (40) 0.082×0.14
二、简便方法计算
(1)4.56×0.4×2.5 (2)12.5×2.7×0.8 (3)12.5×3.2×0.25 (4)2.5×3.2 (5)12.5×56 (6)25×0.36 (7)12.5×8.8 (8)99×0.35 (9)3.7×1.8-2.7×1.8 (10)1.08×9+1.08 (11)0.25×48 (12) 95.7×0.28+6.3×0.28-0.28×2 (13)12.5×88 (14)9.16×1.53-0.53×9.16 (15)5×6.03×0.2 (16)32×1.25 (17)0.45×99 (18)53×10.1 (19)4.2×6.51+3.49×4.2 (20)2.5×0.8×0.4×1.25
一、列竖式计算
(1)0.26×7 （2）3.105×18 (3) 63.08×25 (4)11.4×19 (5)1.59×4 (6) 4.3×2.8 (7) 0.08×125 (8)24×0.5 (9)25×0.125 (10) 4.87×100 (11)28×1.5 (12)0.82×2.3 (13) 3.95×42 (14)2.073×15 (15)3.7×2.5 (16)79×0.236 (17)1.8×3.08 (18)19.5×2.6 (19)0.36×560 (20)3.77×1.8 (21)5.22×0.3 (22)4.67×0.9 (23) 5.6×6.5 (24)4.88×2.9 (25)5.61×2.1 (26)8.9×2.4 (27)4.268×1.7 (28)8.78×83 (29) 9.246×2.85 (30)7.658×85 (31)36.02×0.3 (32) 5.61×4.3 (33) 27.5×5.7 (34) 2.5×0.88 (35)3.77×1.8 (36) 9.77×2.4
(37) 0.072×0.15 (38)0.18×8.45 (39) 0.39×2.9 (40) 0.082×0.14
二、简便方法计算
(1)4.56×0.4×2.5 (2)12.5×2.7×0.8 (3)12.5×3.2×0.25 (4)2.5×3.2 (5)12.5×56 (6)25×0.36 (7)12.5×8.8 (8)99×0.35 (9)3.7×1.8-2.7×1.8 (10)1.08×9+1.08 (11)0.25×48 (12) 95.7×0.28+6.3×0.28-0.28×2 (13)12.5×88 (14)9.16×1.53-0.53×9.16 (15)5×6.03×0.2 (16)32×1.25 (17)0.45×99 (18)53×10.1 (19)4.2×6.51+3.49×4.2 (20)2.5×0.8×0.4×1.25