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1、-小学生口算练习题-第 5 页小学生口算练习题25 +15 47 -27 58 +18 19 +29 16 +16 23 -13 910 +110 712 -512 255 -105 10-2.5 13 +23 47 -27 16 +56 910 -310 29 +49 18 +18 +38 29 -49 1211 -111 47 +47 1-89 12 +15 +12 7619 1-0.001 15626 3.60.2 36045 8016 1.3-0.70.49+0.16 2.60.4 550.001 550.001240030 25 -15 34 +14 29 +59 12 +12 58
2、 -38 56 -16 13-0.56 14 -1.5 910 -410 0.79+0.7999 15+150.89101-0.89 1.1-2.727 573-（273+169）12.411-12.4= 50.25= 0.840.4= 0.2516=2.540= 700-699.9= 620200= 7816=9001-8006= 14412= 158+262+138 375+219+381+225 50012471021232（181+2564）+2719 378+44+114+242+222276+228+353+219 (375+1034)+(966+125)(2130+783+270
3、)+1017 99+999+9999+999997755(2187+755) 2214+638+28630657381065 899+3442357183317357 236510862144972992370+19953999+498188339812257524138254(13125)(38)(12+24+80)5070425253212532(25+125)881251027658981781011788436+64847599+2758310283298199123181233+8512350(344)36.40.2+3.60.2 6.258（1.5+0.25）4 2.140.92.
4、870.7 1.20.4+1.30.47.20.3+2.80.3 4.93.54.23.5 0.7542.42.5 0.36128.82.2 7.52.540.651.02 3.9+2.031.233 3.21.60.050.8 5000.0164.3216 2.560.373.5+3.53 0.99+1.8161.6 （1.25+0.36）0.21.50.4 72.80.80.90.01 5.42.51.41.250.80.5 1.7+0.43+3.3120.3 5.61.01990.35 70.254.20.1 1 26.23.80.10.02 3.5+7.66.3+3.7 250.871.94.1 129.91428 1.69+1.631.4 51.022.35 232195