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小学一年级数学(下)口算题(十七)
17+73= 53+33= 32-15= 60+3= 28+69= 100-94= 63-35= 12-7= 66-46= 10+69= 45+30= 17+42= 38-17= 51-30= 87-55= 17+68= 36-11= 46+52= 30+58= 63+18=
97-70= 47-11= 70+18= 37-20= 79-34= 50+1= 76+18= 3+73= 60-25= 90-46= 88+12= 63-29= 60-13= 50-44= 82-54= 73+8= 14+55= 82+10= 39+51= 88-2= 76+23= 88-88= 52+12= 88-15= 41+56= 27+30= 71+14= 57-55= 88-27= 45-3= 88-12= 82-46= 100-21= 11-2= 99-23= 48-11= 91-74= 57+36= 33+56= 97-23= 60-53= 54+13= 59-7= 58+21= 41-19= 30+28= 38-37= 93-43= 55-14= 100-9= 35-6= 67+33= 39+47= 15+43= 50+22= 48+44= 39+17= 59+11= 71-4= 30+47= 80-75= 94-24= 56+7= 49-4= 96-54= 41-28= 77+6= 1+83= 31-15= 61-50= 85+11= 59+4= 97-9= 100-79= 51+45= 85-23= 50-7= 21+74= 28-13= 70-18= 小学一年级数学(下)口算题(十八)
72-11= 51+49= 70+16= 20+38= 52+3= 70+2= 9+43= 69+7= 36+23= 32+54= 63+6= 48-42= 38-26= 73+1= 90-47= 91-74= 25+8= 47+50= 62-40=
47+16= 38+52= 55+9= 38-19= 64+14= 4+96= 13+86= 34+46= 64-9= 24+70= 61-14= 18+80= 16+74= 28-18= 88-28= 73+14= 36+7= 58-30= 46-9= 81-52= 29+61= 99-32= 17+46= 57-24= 36-22= 37-7= 79+13= 29+57= 55+6= 71-39= 2+80= 58-39= 6+86= 45+9= 37+25= 59+2= 97-60= 43-( )=37 100-33= 24+74= 34+58= 96-22= 55+17= 79+6= 95-62= 48+25= 35-24= 20+40= 44+25= 50+17= 72-61= 67-10= 31+67= 16+48= 50+16= 65-7= 75-( )=15 61+2= 10+85= 32+57= 93-38= 71+28= 26-8= 21+79= 4+73= 35-18= 85-17= 90-2= 23+46= 99-61= 76-3= 67-41= 32+53= 39+7= 82-5= ( )-5=21
20以内退位减法(1)
11-7= 13-5= 14-9= 12-8= 11-9= 12-9= 12-7= 11-3= 12-3= 16-7= 15-6= 13-9= 17-9= 14-8= 15-9= 17-8= 13-8= 12-6= 14-7= 11-6= 14-6= 11-4= 11-2= 13-4= 13-6= 13-7= 11-5= 13-8= 13-7= 12-3= 12-3= 14-6= 13-8= 11-7= 13-7= 11-9= 13-6= 17-9= 11-5= 13-7= 11-5= 14-9= 12-4= 11-8= 12-5= 14-5= 15-7= 18-9= 15-8= 16-9= 16-8= 12-6= 14-7= 11-6= 14-5= 15-7= 18-9= 16-7= 15-6= 13-9=
20以内退位减法(2)
16-7= 15-6= 13-9= 11-4= 11-2= 13-4= 12-6= 14-7= 11-6= 13-5= 14-9= 12-8= 14-5= 15-7= 18-9= 12-9= 12-7= 11-3= 12-4= 11-8= 12-5= 14-8= 15-9= 17-8= 15-8= 16-9= 16-8= 14-5= 15-7= 18-9= 17-9= 15-9= 11-3= 12-9= 12-7= 14-7=
18
20以内退位减法(3)
14-6= 11-4= 11-2= 13-4= 12-3= 16-7= 15-6= 13-9= 13-8= 12-6= 14-7= 11-6= 17-9= 14-8= 15-9= 17-8= 11-5= 15-8= 16-9= 16-8= 11-9= 12-9= 12-7= 11-3= 13-7= 14-5= 15-7= 11-7= 13-5= 14-9= 13-6= 12-4= 11-8= 13-8= 12-6= 14-7= 12-3= 16-7= 15-6= 11-5= 15-8= 16-9= 20以内退位减法(4)
11-9= 12-9= 12-7= 14-6= 11-4= 11-2= 11-5= 15-8= 16-9= 13-6= 12-4= 11-8= 17-9= 14-8= 15-9= 13-7= 14-5= 15-7= 12-3= 16-7= 15-6= 13-8= 12-6= 14-7= 11-7= 13-5= 14-9= 11-9= 12-9= 12-7= 13-7= 14-5= 15-7= 13-6= 12-4= 11-8= 19
18-9= 12-8= 12-5= 11-6= 13-9= 16-8=
11-3= 13-4= 16-8= 12-5= 17-8= 18-9= 13-9= 11-6= 12-8= 11-3= 18-9= 12-5=
20以内退位减法(5)
11-5= 15-8= 16-9= 16-8= 17-9= 14-8= 15-9= 17-8= 13-6= 12-4= 11-8= 12-5= 12-3= 16-7= 15-6= 13-9= 11-9= 12-9= 12-7= 11-3= 13-8= 12-6= 14-7= 11-6= 11-7= 13-5= 14-9= 14-6= 11-4= 11-2= 13-7= 14-5= 15-7= 11-7= 13-5= 14-9= 13-8= 12-6= 14-7= 12-3= 16-7= 15-6= 20以内退位减法(6)
17-9= 14-8= 15-9= 11-5= 15-8= 16-9= 13-8= 12-6= 14-7= 11-7= 13-5= 14-9= 14-6= 11-4= 11-2= 13-7= 14-5= 15-7= 12-3= 16-7= 15-6= 11-9= 12-9= 12-7= 13-6= 12-4= 11-8= 12-3= 16-7= 15-6= 14-6= 11-4= 11-2= 13-8= 12-6= 14-7= 20
12-8= 13-4= 18-9= 12-8= 11-6= 13-9=
17-8= 16-8= 11-6= 12-8= 13-4= 18-9= 13-9= 11-3= 12-5= 13-9= 13-4= 11-6=