1、四年级数学下册口算试题 四( )班 姓名: 等级: 一、口算273= 3448= 313= 1804= 0.560.46= 425= 9.56= 06= 5719= 72020= 31002= 9015= 71030= 7.80.7= 80010= 4200600= 4220= 1.30.8= 63090= 7549= 266= 60.37= 54006= 6804= 9015= 1.81.6= 1205= 600= 2.730.27= 137= 80055= 3745= 0.750.3= 30270= 540090= 5050=214= 7226= 30018= 6436= 431000=
2、7806= 0.691.1= 384= 45090= 2035= 0.2100= 28070= 3208= 7.85= 84.6= 2140=664= 2430= 0.70.5= 452100=41070= 0.810= 10.26=二、脱式计算 253005 (25300)5 2575575 200(354824)(72324)40 45554555 2202 10101010(75255)40 280025480280025480 (380804)602016432 (2016)432(1520150)6040 (1520150)(6040) 7268248409 12035 12035
3、78x101-178 178x101-17 178x101-78 3 49 - 4 8 156 + 17 12 5 9 3 80 4 + 4 76 38 38 6 47 59 + 37 9 52 -( 32 + 45 ) 78 + ( 18 + 19 ) 9 56 + 56 34 89 - 13 7 54 + 34 6 ( 12 + 3 ) 4 8 5 + 8 125 31 56 56 97 - ( 27+ 1021 ) 59 8 4 27 4 25 + 23 4 14 7 6 125 732 34 4 3 29 + 13 57 25 + 37 314 23 + 16 15 23 + 56 922 + 111 12 53 115 + 43 45 23 + 13 15 79 + 129 56 14 + 34 23 7 21-16 + 12 101 15 15 50(55+370)(64-45) 120-48-52 347+452-416 (58+37)(64-95) 95(64-45) 178-145+42 420+580-6421 812-9+3111 85+14(14+208) (284+16)(512-8208) 120-364+35 (58+37)(64-95) (68-68)5585 12 1248 3215+25