一课一练是每位老师在教学过程中必不可少的教学工具,对于一些教学经验还不够丰富的老师来说需要多看一些好的一课一练,这样会成长的更快。新东方在线小学网整理了《2019年北师大版一年级上册数学一课一练:<加与减(答案)>》,供老师们参考。
北师大版一年级上册数学一课一练:加与减(答案)
ACT2X8Krgfc+q0zKMTLfRr0zNEJ7Vb+/yItj173IcyjGMZbmMRQwD7NHYDpjLeXqe43jxBYGK6retA0WP03MzQts/n7KpmVQU4QvNwXGvhPeO6S23YrSWQmtv2uJfhczhyGg3JAezUmA5/prhuKL6tgdB791pP0LWG0OM+PA1FtvcKAXjVXrmnsenmhJYbBaLL99yi3dquv/7ckDD713J9DIBX2xV4Gl8K7TT29YQiodCyfL4+elddS5teLIVvYyAD8CpQgf8MwS3eov3RO6hlUrR30tub2Xrd2565aVzq9RiSA9jjMn+p2TMcV9vujBsiADiWKg1AGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQJpLhNDa8+H2HgOAazu9ckeeWl2b0ntpvz3zCfU+RRuA4709hJbWP3+svV5b1joXkRACuIaGCvw5r9BY4lPatc9gGp2cbs+sqj3t+jSNa3MrAdAqXIEf96EM93sZO0OoZ7tomNQ+P6Jtn77NKjubdRaANrEK/LiX4TaWqUyHh1DkOlD0GD03M4T3+XoPADhKqAJP4+cU3seHUI/asFtLIDW1bRoNvwEcbLsCT+PTENR5IdR7bed5/1ZCCCDXZgV+uRD/9W8o0UshLTcKRJfvuUW7tV1fDMcBHK6x+9DfE4qEQsvy+froXXUtbXr15+5ANyYAHGZnCE1lvH1eL1o5QbB30tub2Xrd255ln7epu0Ub4AiX+UvNnuG42nZn3BABwLFUaQDSCCEA0gghANIIIQDSCCEA0gghANIIIQDSCCEA0gghANIIIQDSXCKE1h7Ns/cYAFzb6ZU78sDQ2myqS/vtmcph3wNMATjS20Noaf3zx9rrtWWt00AIIYBrCFTg2fQFG1M3fDtB5wypkXmEeie0a2nXy6R+pm4AOFQwhOIzqX47QTCA1qZniE5qt/b5nrZNo0nsAM6UHkKR60DRY/TczLC6j+m8AU7XMRzXN733kWrDbi2BVN1uGg2/AZysOR0e96GpOLcGQu/daz1BJ4QAcrVX7sbi3HKjQHT5nlu0w+0yHAdwuuYQ+naxfusEDaHQsny+PnpXXbxNf4Yh3ZgAcJrtij2Nr0X7pRc0lXHjlu1o76S3N7P1urc9H2bXwwzPARzqMn+p2TMcV9vujBsiADiWKg1AGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQJrLhtDRT9yuTX63NbMrAOe4XJWNTM2w9vDSpY9rYVJ76rbwAXiPcLXdM4Fcc6MWjrn1emufra8nsg8Ax7psxa31TqLzCLXORWQ4DuC9Lldl14KgFjy1fdYCZescS58DcKzLVtkje0LRMIlcjwLgOG+psj3FvDWEatd3tnpBaz0iIQRwrrdV2UhBj974sDQc97y8JUxqoSWEAM711hBqKepnD8fNe1CRfQA41lsrbeu1mcj6I0Joa38AzhGqslvDZEff0twaQj3XdvR4APJdrgJvXb+Jhl20h/SOUAVgmSoLQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBECaS4RQbfrtPce4sp/WXoAznF4JI1NmL62v7ReZljt6rp6wazln9GsA+I3eHkJL658/1l6vLVsr4rXlRwVAdP/a1ySEgN8qWP0e5T48Fe5xip+gsdgvhdLWcaO9oD3t2mpv73YCCPjNQhVwGm9luD/6ThAs9LWhrK39ap8f0baW80e26QlNgH/RduV73MtwG0u87zM7wUaBjVwHih6j9/pOq63hwq32bQ1BAvwW25VvGr8FQ8No3Cm/5UdvBDirbbUbDGq9uVrYCiHgN4qF0HAvj+fPG3pGrYHQW5x7w+RdPaHax+hxAP41seG45xAqUxk7Qqj12k5teeSmhLOG8OZt6g0hPSGA0I0JUxlvQ/m8L+FxH157RlsnaAiFluXz9Uu9i71t2jpnz/nW2iqEgN8oVvlergs994KmMm5cI4r+xt/bm9l63dueGsNxAMe4TOXrGY6rbXfGENdRw4BrxwX4bVQ+ANIIIQDSCCEA0gghANIIIQDSCCEA0gghANIIIQDSCCEA0gghANJcIoTWHmWz9xhXcvX2AWQ4vTJGnqu2tL62355nuLU+wLT1HNE2A5AQQkvrnz/WXq8ta50GYk8gRLevfQ1CCOBD1/TePTOrthbvo3soe9s1b1/vdgII4K/2ijiN5VabQGh+gmChrw1tbe1X+/yItrUef2uIzpAcwIfGSvgo96E+id23EwTm19m6DhQ9Rk+gtIZKS6DOe3WtxwH417VVwmlsmtq7lPdMLre27qi21W4wqPXeauEqhACaQqi9F1RK+3Bcb7HuKepn9oRqH6PHAfjXxSvhNDbdkPB1goYbBaLLIzclHDmEd0QI6QkBfBeuhNN4K8O9ZSDuzwkaQqFl+Xz9Um9jb5uW2uCaEMBxYpXwcS/DYi9oKuOtPkQX7QH09ma2Xve2J3Kere2FEEDdZSphz3BcbbsjhryOGvaLtB/gN1IJAUgjhABII4QASCOEAEgjhABII4QASCOEAEgjhABII4QASCOEAEgjhABIc4kQWnu+2t5jnGGrrdFn2pnSAeANIRQpukvra/vtebDo3hBoDaGt9UII+M3eHkJL658/1l6vLWudi2hvCG2FZctTtYUQ8JuFKuDjPjwV2KG0zG3XWuyXQmnruK1B0NOuWpta5gkyHAfw13YFnE1o97gP5VabxW5+gmChXZsjKFLUa58f0bb59lu9oKWhQwC+Sw+hyHWg6DF6h9Za92nVEloAv0ms+k3j34LZEEClnNMTqBXwlsJ+RAhFQiVyXQvgNwpVwmm8ldtwL48/YdSSQ62B0NtL6O2h9A7H1a5dRYNKbwj47bYr3zS+9n5mw3ObJ2i4USC6PFrUzxrCi7Ql8jUA/HablfBxHz56QZ8LprHcOkNoKxRals/X13omvW3qPd9aUK0dA+C3ClTBR7kPr0X7b8doKuPG8Fy0d9Lbm9l63duerf232h1p51ZbAf51l6mAPcNxte3Ous6yZ6htK4ABfhuVD4A0QgiANEIIgDRCCIA0QgiANEIIgDRCCIA0QgiANEIIgDRCCIA0lwihI54y/dMee/PT2gtwhtMrYeSBoWvz9Kztt2cqh6MeYBo9Z/RrAPiN3h5CS+ufP9Zery3rfWDoEQEQ3d+TtAG+C1W/x334W7Sf5xaKnKCx2Efn2unpBe1p11Z7e7cTQMBvFptZ9WkSu2m8vc60unWCYKGvDWVt7Vf7/Ii2tZw/sk1PaAL8i2Izqz6HzjQ29Ya2CmzkOlD0GL3Xd1ptDRdutW9rCBLgt4j1hJ5D53EvQ8f03keK3ghwVtu2bpJYO0ctbIUQ8Bt1Te99ZE9ovl1vce4Nk3f1hGofo8cB+Ne0V75p7Lom1Hptp7Y8clPCWUN48zb1hpCeEEBzCE1lvN1KQwY1hULL8vn6pd7F3jZtnbPnfGttFULAb7Rd+R73MjwV0dcA2g6l6G/8vb2Zrde97akxHAdwjMtUvp7huNp2ZwxxHTUMuHZcgN9G5QMgjRACII0QAiCNEAIgjRACII0QAiCNEAIgjRACII0QAiCNEAIgjRACIM3lQmjt2Wp79l/bbunp1qZXAHifcJXd89DOpgZtzLmzZ26itW22HoYKwDkuV21be0K9T7ZeWyeAAN7nUhU3MjxW67XsXWc4DuC9Lldlt3olLfMObS1fCr3IvgAc43JVdh5Ckd7JEdeInrdbCyUAjtVUZc+8UWBp2713ytXOUfs6hBDAe7ytyrb2Rj5fR3tCvXfTrV0bamkzAH3eGkLRW6drIdB6+/XWNmt3xwkggPO9tdJGhu227ow7avhvKWzcmADwXpevsj1/w9MbQgC8V6gCR665nPF3NZHhuJ62RXtbAgrgXKosAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABpLh9CkdlVe44BQL7U6hyZTntp/dbU3b1TkZveG+C9LhVCS+ufP9Zery1bC5LaciEE8B7hKjuNt3K7DeX++LbiqWgvrK+dvLHYL4XS1nGjvaA97fq05z1qPV/vuQ45z4Ffz+M+HPre9LYXyBH4yZ7KeLuVcZrKOP8BftzL8LTscR/KbbiX6M94tLgsbRcNk9rnR7Ttw/73KH6+fefafZ4jv57HvQy3sUxfnw7lNk7fNou1eV97gRwNv+p/L3rfi8ZCYaydfKO4RK4DRY/RczND+3Dc8e9R/rlej3HoOYIhdJn2AofbHULD67jHoSHUozbs1hJIR4ZQ5D1qP1/fufae5/Cv53mobCWA2nul7e0FcvyIEOq9tvO8fyshtHyMo7+eabx9DI/9CaOlHBJC8O86YTju7/DK5skbbhSILo/clHDWEN7e9+iIEIqca28IHfb1TOPrsWbDc31t7m8v8H67QuioGxMiodCyfL5+/vGINi3bd2PCO861+zwHfj3f9p3Gcjs4NN2YANcW+Ol+lPsw60U8/RC/3mL7XEA+71aqnDzYO+ntzWy97m3Pd73vUY93nWv9PGeeo/++hHe0Fzjaj/hrzJ7huNp2fb0cAI6mEgOQRggBkEYIAZBGCAGQRggBkEYIAZBGCAGQRggBkEYIAZBGCAGQ5vIhtPZonr3HACBfanWOPDB0aX1tvz1TOfQ/wBSAHpcKoaX1zx9rr9eWtU4DIYQA3idcZafxVm4rM1LW1lVP3ljso/MC9fSCWtv1Mj3Aynw63VNBzOYzaDnWse16bpspEIDjBarR57xAS9Mi19YFTh4siGvTM0TCpPZ5f9umMn4FxUeRHmZffEuxn8bv+/cdayrjV/Dsb1cpn9Nj381GCpxi38yqoXWVk28UxMh1oOgxem5mCBf+jq/9S2VK6722wm3TV9tMiQ2c49Ih1KM27NYSSC3DcUuzgYa/tmn81ub58frep+X/k9Ye2kdbhBBwjh8RQr3Xdp73bxU//p9rJr3Xcabx9drNNH67/tITQmu9oKZ2fX1NQgg4xyVCqPXaTm155KaEw4fw5kGy0e4Xj3sZXvZdLvit13Hmodh6rI+bTeb/dgw7Aiy4TAhthULL8vn6+cfdbZrGl17GNC73hGJe37vHffgWaC0BtNSWvnbN26gnBBwv8qv66+3DL7f+1tZ93jlXOXmwd9Lbm9l63dueb1/3Qi+oyct1oR3F/nEvw/xr2Nu2jwYKIeAUP+KvMXuG42rbnXFDBADtVGIA0gghANIIIQDSCCEA0gghANIIIQDSCCEA0gghANIIIQDSCCEA0gghANJcPoTWng+39xgA5EutzpGnVi+tr+23Zz6h3knzAOhzqRBaWv/8sfZ6bVnrXERCCOB9wlX2Y6bN7xPXPe5D99w1rcU+OjldTy9oT7tK2fc+APxWgSr7OTnd0uypUxlnE9wNDdOrRgv92hxB0ZlV1z4/om2llD+T0v2d9G1rdlMAPhw0vfefLcZjQyhyHSh6jJ6bGaL7PO7Da+hMo94QQMCBIbQdUt9OfsJ1l9qwW0sgNfeEnkPncS+D6bABNh0WQq29oFLah+N6717rCbq2gPwYinxpm54QwKZDQujbcFT05A03CkSX77lFu7Vdq6bRNSGAgN0htOcifEsotCyfr4/eVdfSpnWfN3J07ArwywSqbGWo6XEvw7yH8TUMtV2Mo72T3t7M1uve9nwzex8EEEDMj/hrzJ7huNp2Z9wQAUA7lRiANEIIgDRCCIA0QgiANEIIgDRCCIA0QgiANEIIgDRCCIA0QgiANJcPobVH8+w9BgD5Uqtz5IGhtdlUl/bbM5VD9wNMAehyqRBaWv/8sfZ6bVnrNBBCCOB9wlV2Gm/ltjCf0OM+dM8m2jtDamQeod4J7aLt2vN1A/AhUP0/5wVamtRuKuPX5Dkf8w61TPEdDaC16Rmik9qtfd7ftqmMX8HT/nUD8OGQ6b1j6xdOHpiYbus6UPQYPTczRPeZRiEE0GN3CD0PS7XOKHrGdZfasFtLIMXb1h6+AHw4sCf0ZxrwhiRqDYTeu9d6gi56fL0ggH4HhlApZRqbLtK33CgQXb7nFu3Wdj3uQ1PoAvBqXwhN40svYBr7ekKRUGhZPl8fvauupU2tXysA3wVC6M8w23Nxnt0Ztnyr8udddZWTB3snvb2Zrde97SmPexnm27pNG6DZj/hrzJ7huNp2Z9wQAUA7lRiANEIIgDRCCIA0QgiANEIIgDRCCIA0QgiANEIIgDRCCIA0QgiANJcPobVH8+w9BgD5Uqtz5IGhtdlUl/bbM5VD73xFa1/bO/YB+MkuFUJL658/1l6vLWudBuKIEHp3eAH8VOGKN423clud1O5zSoextMyw0ztDamQeod4J7XratdbOJfX3UQgBv0ug4n3OC7Q+s+rjPpThfi9jZwj1bBcNk9rnR7Rt65x/bb+P28eYedzLYGI94AfbP733416G21imMh0eQpHrQNFj9NzMcM51HSEE8Gl3CE3j5+ypx4dQj9qwW0sgCSGA8+0LoWkst68ieF4I9V7bed6/1ZVD6HEfFt6Ltvce4Ap2hdDHRfb5v3qBfTl5w40C0eV7btFubVdrez/UQ6jpnHpCwA+3/5rQy/r+u+O2QqFl+Xx99K66ljZFzrtMCAF8ClS8z9uvn/4N9/K9hs5D6PNusMrJg72T3t7M1uve9kR833f7fWw+nxACfrgf8UcpPcNxte3OuCECgHYqMQBphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGkOCaFzpjwA4F+3OwX2BokgAvi9TguhlymoF+cfqu8PwL9vVwKsB8hUxq/g+ZjMbajM+S2IAH6nk0Lo1TQeF0KtM6wCcF1vCKGpjLehVDJIiAD8UqeH0FYvKHocAP49p94d97gP5TZO3fsD8G87LYSm8bYZQLX9Afj3nfPHqo97GeY3Dyzcpi2AAH43KQBAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBECacx5gevJ+APwbTp1P6B37A/BznRZCj/tQncZha38A/n0nTe89lfFrQrtHuQ/1Kb4FEcDvdFIIPZvKeBtKJYOaQug2nyzvzz8Afp7TQuh5OG5rlm8hAvA7vaEn9DEcd6skkRAC+J3ec3fcNK7enCCAAH6vc0JoGl9uRJjG9Z6QEAL4vU76Y9U/Q3Abt2gLIIDfTQoAkEYIAZBGCAGQRggBkEYIAZBGCAGQRggBkEYIAZBGCAGQRggBkEYIAZBGCAGQ5pIhNH+w6dZMqksPQt16OOrS8czYCvBe4Sq7Nq32GUV76Xhrr5fattbe+T614wFwvqYQannd3aDG8zyHTkub1gJKAAG8z6VCKHqO2nmWQil6LsNxAO91qRD6PEZPEKwNubX0hAzLAbzXJUMo8vF5+62eTDTMts4FwLHeEkItxXwrSI4YJtu6sUIIAbxHcwgtFeZIOLQMq80/9txoEA2s2k0OQgjgXM23aG9ts2f/5+3WQqS1t7W1fC3kBBDA+bqG43q32XNdZqt3syeE1rYVRADnutwfq0ZuRGhtX+Q8ALzfW3tCrfufNRxXu5vu6FAFYJ0qC0AaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAmsuHUG1m1D3HOFp0+vNaW945k+tPnzX2p7T/p7QTsqT+hEQK9NL62n57wiB7em8hFPdT2v9T2glZLhVCS+ufP9Zery1bKwK15T0hVAvIeYBuHeNskbYsbX8Vre3P8lPaCZnCPx3TeCu321Duj+elj3IfXgvtODWcvLHYR3+o9wyJ9bRrrW1Lr48Mocd9+NvW4V4e27uEQ3q+/sxCuvy9VW/P2ufH6/sef3874WcK/GRMZbzdyjhNZVwMoVjxWDx5sNAvbRcNk9rnR7Rtfuy9IRQPzKmMX8HzUSiHjf+Ilh5lS7v71b631ttSe3289u/xnHbCz9TwU/H+EJoPY60Nb0UL+5FtW9p+rZ3vGI6bxvUQWgvxnm3OUQ+hrvY/7mXo7KG/in+Pt7XzI4C/f5+Mpbup8AMdEEL9P0A94RA9Zq331Nv72tr++ePa63NCKNaTaD1Xbwi1/78e3P7HvQwv34sf36fzIIq1c//3+LKp3Be+4Mf9LoT4VXaG0KvHfQhfmyilfTguPlT1ff9WPymEar2g3nOtrT8jwI8Oocd9+N7zedzLMPve7PklqOd7fJkQglIODqEyjV0hdGRBrAVWNMB6hvCyhuMe96HcOsaazgyhlu0+5ITQ1nEWdXyPrxwoHEJnjBjAVRwaQtN4ayqILaHQsny+PhIArW1qbUtku9ZC0/p+H9WOveu/yxuOa9XzPb5yJCEEJRRC329R/fpNcBqXl5dS/t75VDl5sHfS25vZet3bntY27g3bRbML79/f/+32nvV1NHwR699bne3/e+iDbkyofo/vaacbE6CUpp5Qnp7huNp2mb9ZzgPxfQV/vR0/0U9p/09pJ2TxEwJAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAGiEEQBohBEAaIQRAmsuH0NqjefYeA4B8qdU58oy0pfW1/fY8j+0dz2z7iaLvVfRhtACfLhVCS+ufP9Zery1rLYZC6FVvmBz2tHDgnxauBtN4K7fFOV9mj+PvnE8our3LccMAAAYUSURBVP3zx8hxe55K3RNCj/vQ/bj/ylH/vLd7H+//fcqE6H+TEALOFKgGn/MCLU881jO19NfJg4V+bXqG1kLYUvyaQmgaX4Jiz2Rzzx73oQz3exlXQigeso9yH9omjfs8fs+6I9YDv8O+mVW/zWDZePKNQh+5DhQ9Rs/NDNF9vk2xvTIFdFOv7Ou9nVZDKE4IAde0L4Tms042DPOUcs7kcrUC3xJIzT2h59DZGc4fh/x8L9dDqK0n1D57ZzTce4c8AfaH0HPxnQ1LbZ68MRBaC93z/q3aArJ/mupF0/jUszqiJ/TqcR9C7TszKIQQUMoRw3EvxaytYO79rXlpeeQ39LOG8L68hEjP7kvtbR9Oq7YvGJJnhIUAAj7tC6HZsuhv2F8nbwiFluXz9fOPR7Rp3eeNHB27rh7v2J5Qy40TZ/6/AASqwcZQ08t1oediuV2Mo72T3t7M1uve9nzzuJeh87rYtgNCaH7trnGocK3H2bpPZD/gd/kRFaFnOK623a6hNk69Fgf8LqoEAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABphBAAaYQQAGmEEABpwiHU8xDLDK1t2nrOXOT4Z89rdMa2AFfQFELzp0t3P3X6xHP0TNfQ8pTuq4fQkf8fkeOfeT7g3xeqGkvz8USnR+hqVOXYa0/E7i2Qe3pC8/elZXqJ2jY9X887eqpH/AIA8KyraiyF0pG2Cn1kv8g59obWUvgc1b6W7fsD6PtcUVvzP7W2A6CmqWqs/Qa+VXj3FN89IbQnELZ6XPNl0XO2hF0kIPf0Aj9CKD5tuBACjhYejlsqvEvLa/tGz7PUs9gKodbewN6e0Frv54ieUCTY93z+13tCqOcXEeB3uGRlaO0J1QIwco6W9bW27T3n/JjRgNwXQs/HrU8j3hPc0fcG+J26huPiwz2djWoIobUgiBTHPT2htbYd0RPa2nbpPej5WuYe96HchnsJdoxChBBQ0xxCLcs/17UWn0jQRNpwVNFf2y7Srj3t6QmV1ja9mMbDQ+izLQIIWHLZEGot9i0hFOk5bPWgWs+5te6I4+wJyFJKmcZbudVujwueGyDqUsNxS8eKFtaze0JbbYsc58wQ2mrb4vGm8fX/caMXFHmPAFqc3hPaY6snsrRtb1D2fg218+ztcdXOt/Z5rW17nDHkCKBiAJBGCAGQRggBkEYIAZBGCAGQRggBkEYIAZBGCAGQRggBkEYIAZDm8iG095lwPdvvOfZZz9UD+BelVsiWp1bPn1591vPaWgNkrQ1Lr1kX/f+I/P94z+HnuFQILa1//lh7vbastVD1PvT0CiH0U4tvb5i0PmkcuJ7wT+o03srtNpT742Xhwm+n9SmiX07eOGS1FEpbx+19ovbWdtEA2lMMH/fhqS2z936jTdVjHTBx3fb3w3Z7Pwkh+L0CP6lTGW+3Mk5TGbcKyzRuTor2cvLGIa/WfaO9ot629V7/CW37uJfhKdAf96F7wrlSpjJ+Bc+j3IdbGWb/kfHAXvl+eNzL8PR5dKrwPUGydz2Qr+GndCuEPopbQwaFehvPvZ+l4hg9RmtBagm5rY89x46GUE9vbxq/h1C71++H7+0L/NJShBD8dseF0DQ2D/PsHa6qHbPWe+rtfW2day0wuz0PbwXSPXau5f/H9jD7HkKvwXZMCO0dVgWu7aAQau8FldI+HLdn+KtVb0/oeZ+9RXAa/1y/+RNGW+9v5HzH9IJKeUcI7SWE4PqOCaFpLC03JHydfOdvtEvLI789HzWEt3XMXcNx8+trs+G5tePWRK4rxUWG42LfE2eEhQCCn+GQEOr97bolFFqWz9dvXaPpaVPt+FvHiBz724X9zqD/u3tsSK/hiIfcmFBK33UhQ3Hwbwj8pH4Mtb0U1ufisvob+uddVJWTB3snvb2Zrde97Zkfay3k9hXC7+97d4Y87mWYf23dt2mvfz+83lLeFphrYd26T2Q/4Dp+xE9rz3BcbbuW60nRNrUMx7HtzOt9wHX4CQYgjRACII0QAiCNEAIgjRACII0QAiCNEAIgjRACII0QAiCNEAIgjRACII0QAiCNEAIgzf8oj07+LqinNAAAAABJRU5ErkJggg==" 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以上是《2019年北师大版一年级上册数学一课一练:<加与减(答案)>》的内容,更多北师大版一年级上册小学教学一课一练请关注新东方在线小学网。