1、五年级下册数学计算题练习第一部分:计算题1、口算6.3+7= 2.199.1= 50.751.50.75= 0.7+3= 1.20.8= 0.97+10.7= 6.30.021= 1.50.03= 6.8-2.43= 50.7= 0.435= 3.60.9-4= 3.250= 3.20.5= 10.010.1= 1.250.5= 1.293= 7.2-1.2+6.7= 2、竖式计算(不能整除的用保留两位小数)(1)2536 (2)87545 (3)545(4)3.1425 (5)3.1436 (6)3.1416(7)59823 (8)197652 (9)10845(10)12.563.14 (
2、11)78.53.14 (12) 6.210.3 3、简便方法计算,写出主要计算过程。(1)6.122.88(2)() (3) ( ) (4) (5) (6) (7)4.58-(2.58+1.5) (8)2.30.250.4 (9)2.70.99 (10)1.2520.374 (11)(2.5-0.25)0.4 (12)3.7899+3.78 (13)42.2103 (14)8.399 (15)0.1253.20.25 4、解方程。(12分)(1) 2x8.218.2 (2) 3x *(3) x 0.5 (4) 3(x1.5)6 (5) x () (6) x5、递等式计算 (1)39.4519.350.559.35 (2)360156(3)0.48250.3 (4)821512.220 (5)8.87.72.5 (6)4.023.50.98 (7)(58+370)(64-45) (8)120-14418+35