发布时间 : 星期三 文章小学二年级数学速算与巧算更新完毕开始阅读c029a9c7793e0912a21614791711cc7931b778f2
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8+15+2= 23-9+13= 17+4+3= 6+17+3= 13+4+7= 22-6+13= 19+10-17= 15+15-18= 23-14+15= 7+16-18= 34+6= 35+25= 26+34= 0+37= 36+25= 56-28= 75-26= 74-34= 36+45= 100-76= 3+5+17= 7+15+4= 16+5+8= 2+5+19= 3+14+7= 15+4+6= 9+15+4= 8+6+12= 7+15+6= 8+13+1= 18+6+4= 11+3+15= 12+15+2= 14+13+2= 15+13+2= 15+3+10= 10+5+14= 9+10+11= 12+15+3= 13+2+14=
11+13-15= 13+2+14= 30-18-9= 11+3+15= 30-8-16= 9+10+1= 26-10-13= 18+6+4= 29-5-7= 30-16-5= 8+13+1= 12+15+3= 12+15+2= 30-13-15= 30-15-4= 30-19-8= 20-6-5= 20-5-7= 30-16-13=
30-16-14=
42-19= 72-35= 85-26= 34+29= 19+28= 25+37= 28+34= 37+48= 28+39= 38+36= 35+26= 33+49= 25+37= 51-34= 56-27= 64-13= 81-47= 18+39= 56-28= 36+45=
31
38+16= 34+19= 38+29= 54-26= 38+27= 62-38= 51-18= 19+48= 36+45= 27-19= 38-9= 37-18= 35-29= 28+16= 64-13= 58+16= 27-19= 54-5= 61-15= 56-38=
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15+2+11= 12+17+1= 12+3+14= 13+2+15= 9+15+7= 30-11-13= 26-5-16= 28-19-3= 27-6-15= 26-18-2= 39-27= 19+28= 82-36= 37+48= 51-18= 3+29= 46+14= 54-26= 38+27= 62-38= 15+3+10= 10+15+4= 9+7+14= 12+15+3= 13+2+14= 29-5-7= 28-3-16= 30-18-9= 20-6-5= 30-8-16= 30-13-8= 30-13-15= 30-15-4= 12-8+16= 17-8+15= 28-9-19= 27-18+8= 13+16-15= 18-12+19= 21-8+16=
25-9-12= 23-14-9= 23-10-5= 25-16-7= 28-2-19= 26-7-18= 30-16-14= 30-11-13= 26-5-16= 28-19-3= 25-7-13= 26-17-5= 15+3+10= 12+15+2= 29-5-7= 13+2+14= 30-15-4= 12+17+1= 21-17-1=
1+13+7=
82-34= 60-25= 80-9= 9+34= 18+26= 54-26= 34+38= 76-54= 27-19= 38-9= 37-18= 26-17= 35-17= 42-38= 76-59= 35-29= 37-21= 37-37= 100-82= 39-27=
31
51-18= 26+18= 91-18= 83-24= 54-28= 56-27= 64-13= 58+16= 12+29= 38+26= 37+16= 51-34= 82-34= 33+49= 73-28= 35+18= 51-34= 35+16= 37+16= 83-26=
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24-8+7= 30-19-8= 30-16-5= 30-5-17= 30-16-13= 13+15-19= 16-9+15= 28-21-7= 12+5+13= 25-18+17= 26+38= 82-36= 34+38= 28+39= 46+29= 34+46= 39-27= 60-25= 34+36= 80-9= 30-16-14= 30-11-13= 26-5-16= 28-19-3= 27-6-15= 26-18-2= 25-9-12= 23-14-9= 9+10+11= 12+5+13= 13+2+14= 15+12+1= 12+17+1= 12+3+14= 13+2+15= 9+15+1= 15+3+9= 10+15+4= 13+12+4= 29-5-17=
25-9-13= 15+17-14= 11+13-15= 14-12+18= 23-5-16= 24-8-15= 3+15+7= 15+3+10= 10+15+4= 30-14-6= 30-12-8= 15+3+7= 10+15+4= 27-8-16= 26-15-8= 27-18-9= 8+5+7= 9+6+7= 5+5+9=
8+5+6=
54-26= 28+34= 91-18= 15+68= 84-16= 25+37= 19+28= 36+45= 28+34= 26+38= 37+48= 34+19= 28+39= 34+38= 38+36= 28+27= 35+26= 46+29= 33+49= 34+46=
31
9+34= 18+26= 37+25= 91-8= 73-19= 100-76= 38+16= 34+19= 19+48= 36+45= 75-26= 74-34= 82-37= 9+16= 25+67= 100-82= 42+19= 35+27= 37+16= 35-29=
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28-3-16= 30-18-9= 30-16-5= 30-8-16= 30-13-8= 7+14+8= 21-17-18= 12+8+4= 9+5+14= 26-8-12= 25+37= 42+37= 32-16= 45-29= 56-28= 33+49= 25+37= 51-34= 56-27= 64-13= 30-13-15= 23-9+15= 23-10-5= 25-16-7= 28-2-19= 26-7-18= 26-10-13= 26-17-5= 30-16-5= 30-18-6= 30-3-18= 28-19-4= 26-17-5= 26-8-13= 23-14-6= 25-7-13= 24-17-3= 26-8-14= 29-4-17= 23-15-6=
22-13+15= 13+9-17= 13+16-10= 27-9+12= 12+18-11= 15+14-16= 26-18+17= 25-19+15= 24-17+12= 7+19-15= 12+16-18= 30-8-15= 14+8+6= 15+14-16= 26-18+17= 25-19+15= 24-17+12= 7+19-15= 12+16-18=
30-8-15=
39-27= 92-47= 18+39= 81-47= 82-36= 75-46= 37+48= 34+19= 28+39= 34+38= 38+36= 54-26= 38+27= 62-38= 51-18= 52-16= 61-19= 82-34= 93-48= 76-38=
31
36+25= 42-19= 85-26= 34+29= 19+28= 82-36= 37+48= 51-18= 82-34= 18+39= 56-28= 36+45= 39-27= 92-47= 18+39= 81-47= 28+39= 46+29= 54-26= 76-59=