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1、-北师大版数学三年级下册口算练习-第 4 页4.2+0.3= 10.5+1.2= 1.2+11.9= 8.84.3= 8.77.8=4.54.2= 16.8+3.2= 25+4.9= 8.62.9= 106.1=0.4+0.6= 4.5+5.4= 5.4+3.7= 9.73.5= 12.33.2=2.30.5= 12.3+6.9= 10+6.5= 18.41.8= 204.5=1+0.5= 4.2+15.6= 8.5+3.6= 16.53.4= 36.519.7=1.80.8= 4.9+11.7= 6+10.8= 28.516.7= 181.2=4.9+1.7= 12.4+3.5= 3.7+4
2、.6= 7.82.6= 8.33.7=3.41.6= 2.9+14.3= 15+8.5= 29.88.8= 136.5=1.2+5.7= 6.85.1= 2.2+10.7= 5.62.3= 8.3+6.7=3.6+6.2= 3.92.8= 17.80.4= 1.8+3.5= 6.85.8=703= 163= 3620= 1840= 4250=2420= 6030= 98100= 5022= 8090= 12030= 1270= 1930= 3040= 2580=1460= 2430= 13020= 2730= 1550=3050= 4040= 5020= 1640= 28200=2720= 3
3、026= 1850= 503= 3650=7060= 7580= 2820= 1470= 12030=1830= 3500= 4220= 2550= 5060=1240= 5020= 3050= 17005= 1120=133= 1420= 9060= 2930= 5080=+ = = 1 = + = =+ = = 1 = + = + =+ = = 1 = + = 1 = = = + = 1 = =+ = = + = = 1 =+ = = + = = 1 = = + = = 1 = + = = + = + = + = = = + = 1 = + = + =+ = = + = 1 = =302=
4、 693= 552= 37+6= 640-340=802= 133= 483= 49+8= 700+300=5004= 482= 654= 7+88= 800-600=2103= 313= 905= 77+4= 180+70=670= 884= 167= 89+4= 305-100=2404= 342= 755= 69+6= 210+430=3002= 484= 226= 85+6= 61-33=804= 242= 846= 59+8= 1800=405= 461= 176= 69+3= 710-210=4207= 244= 605= 26+4= 250+280=304= 993= 118=
5、48+2= 350-200=3005= 163= 453= 05+8= 86+78=508= 963= 445= 73+4= 620-260=8004= 135= 966= 5+28= 54+25=607= 862= 652= 26+5= 230+760=42007= 143= 724= 690= 500-500=76+52= 186+11= 455+23= 200+4008= 310-（16+24）4867= 20-105= 5055= 60023 （3+6）254+189= 586= 88+6= 155+20= 2004+30=933-18= （15+25）2= 6004-2000= 80-203= 3006+5=