小学生数学口算题一年级50以内退位减法口算

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47-9=42-9=45-16=46-7= 43-8=45-19=27-8=33-18= 43-25=44-36=43-9=42-33= 43-39=43-18=37-19=43-15= 44-35=46-19=42-29=46-28= 48-39=47-19=41-22=36-8= 34-18=41-18=41-19=41-13= 41-36=47-8=45-17=41-7= 42-8=32-18=41-8=33-9= 44-16=43-5=44-29=45-26= 36-29=41-4=44-25=32-24= 37-8=26-18=38-29=32-27= 33-19=43-34=36-18=31-8= 42-36=46-38=36-19=42-25= 45-29=42-39=42-14=34-25= 27-19=31-6=41-3=34-19= 48-19=31-18=28-19=35-19= 33-25=43-7=42-7=45-28= 46-17=35-27=32-9=33-8= 26-19=44-9=31-5=41-5=

31-26=33-29=32-8=41-6= 41-32=42-27=41-29=31-23= 34-26=43-17=44-18=42-35= 46-27=44-39=47-18=31-25= 42-13=31-14=34-28=44-37= 44-5=43-27=41-34=35-16= 31-2=42-18=26-8=31-13= 45-8=37-9=32-5=42-28= 35-17=41-14=32-28=32-7= 35-9=42-38=33-4=43-6= 42-3=42-16=42-23=33-5= 31-3=28-9=37-29=44-26= 43-24=34-15=44-7=43-29= 32-3=42-37=34-7=41-17= 48-29=44-15=42-24=43-35= 41-16=35-18=42-4=45-27= 46-8=44-8=46-29=32-15= 26-17=41-35=41-27=37-28= 42-5=44-19=37-18=33-14= 36-28=47-38=46-18=41-23= 43-16=35-26=45-6=36-7= 41-24=33-27=45-38=26-7=

32-25=31-22=35-7=41-28= 41-25=43-36=34-5=43-26= 32-23=31-28=33-7=35-28= 45-39=38-19=32-13=33-6= 47-39=34-9=43-14=43-4= 44-28=34-8=44-38=36-27= 32-6=35-8=31-17=31-15= 33-15=31-4=32-29=34-17= 47-28=36-17=46-37=43-38= 42-34=31-19=48-9=42-26= 32-16=32-14=34-16=31-7= 33-28=33-17=31-24=33-26= 41-26=45-18=33-16=44-27= 35-6=45-37=41-9=42-15= 32-4=41-33=34-6=45-36= 43-37=31-12=26-9=41-38= 46-39=32-17=32-26=31-9= 33-24=27-18=36-9=41-15=

264 题

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分数:

31-16=42-17=34-25=43-37= 46-7=42-36=44-17=42-34= 33-6=43-36=35-8=45-39= 33-17=32-7=44-28=47-38= 43-16=32-28=26-7=42-35= 33-26=36-7=32-26=31-26= 44-15=31-6=41-39=34-5= 43-18=41-25=41-3=42-27= 41-14=41-16=33-25=36-28= 32-8=43-25=44-38=36-8= 31-8=48-39=44-18=37-18= 46-38=34-9=31-4=36-17= 43-19=42-29=44-8=38-29= 34-8=34-29=41-37=32-5= 31-12=45-17=31-14=43-4= 33-4=44-16=36-29=41-32= 42-4=31-24=42-14=32-17= 31-29=33-29=45-27=45-37= 31-5=41-5=31-17=42-18= 41-9=43-9=41-15=42-5= 27-19=31-18=33-7=31-9= 35-17=44-9=41-2=26-18=

45-26=47-29=43-17=43-26= 45-29=36-27=35-9=32-19= 33-28=31-15=33-5=47-8= 26-17=31-13=43-34=44-6= 31-25=31-19=46-8=44-35= 46-29=41-17=44-5=41-28= 43-38=44-37=35-19=32-3= 34-16=43-15=43-27=38-19= 43-39=32-18=47-18=47-39= 45-16=36-9=46-18=41-8= 36-18=45-8=41-38=41-6= 41-18=43-8=44-39=37-29= 42-3=32-6=45-36=32-29= 41-24=33-27=41-34=32-13= 42-28=44-26=31-7=37-8= 33-8=41-23=35-27=47-19= 26-9=27-18=37-19=48-29= 44-27=34-27=31-23=46-19= 41-35=41-29=41-4=42-37= 31-27=27-9=46-27=43-28= 42-7=42-16=46-37=35-6= 41-13=43-6=41-12=26-8=

41-26=45-6=48-9=43-5= 43-24=42-8=42-25=41-7= 42-19=47-28=41-22=34-26= 34-7=34-19=35-18=42-24= 33-18=33-15=38-9=35-7= 44-19=43-29=34-18=42-33= 41-36=47-9=28-9=28-19= 34-15=26-19=45-28=44-7= 46-28=35-26=42-13=45-19= 48-19=27-8=33-16=45-7= 32-24=42-15=35-16=33-24= 35-29=32-9=44-29=41-19= 41-27=33-19=37-9=37-28= 42-38=45-9=46-9=32-14= 32-25=36-19=45-38=33-14= 45-18=31-22=44-25=43-35=

264 题

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