青岛版小学数学三下口算题班级:姓名:3030=4030=6020=5050=30030=40030=60020=50050=333=212=124=115=33030=21020=12040=11050=30040=5020=3060=40900=20400=20080=21030=32030=42020=8020=80020=6010=60010=4020=40020=16020=10050=81090=12030=24080=63070=5010=36060=21030=14020=49070=22020=242=28070=363=6060=9030=6606=40040=3010=5406=32040=12040=36030=90090=15050=7208=84040=21030=42060=25050=36040=4202=404=39030=460+90=133=60020=32080=54090=90-63=4320=884=166=174=1950=1330=1506=30020=8500=6404=7803=60030=955=45050=72090=5600800=0.4+0.3=0.8-0.2=0.6+0.5=0.7+0.2=1.9-1.8=4.5+2.4=1.3-0.8=1.4-0.9=