二年级上册数学口算题训练（假期练习） 89-37= 56-28= 44+39= 56-36= 54+28= 48+23= 86-54= 84-48= 54+37= 98-56= 42-19= 62+12= 72-54= 76-37= 69-31= 51-39= 57-48= 40-29= 78-69= 59+19= 35+17= 75-59= 70+19= 22+55= 16+27= 54-29= 67-60= 93-56= 52-27= 54+29= 27+36= 48+48= 72-37= 55-47= 60-38= 24+38= 16+23= 46-28= 43-27= 79-64= 85-50= 65-36= 36-25= 63+25= 35-16= 23+32= 63-27= 60+25= 53+28= 42-23= 57-16= 98-48= 42-32= 24+58= 63-25= 52-17= 77-28= 45-36= 74+18= 63+37= 47+19= 73+24= 62-49= 47+28= 66-48= 68-39= 53-35= 42-29= 91-37= 72-39= 62+19= 73+29= 48-26= 42-19= 27+16= 26+17= 53-35= 53-39= 84+19= 83-49= 63+34= 63+34= 64+24= 55+38= 74-68= 43+28= 56-27= 62-34= 36+26= 39+35= 67+29= 85-56= 78-39= 83+17= 64-45= 64-45= 53+16= 40-17= 64-17= 56+17= 22+28= 62-35= 81-35= 35+19= 84-29= 72+18= 74-37= 46+27= 32+19= 32+19= 82-37= 79-28= 54-45= 72-45= 96-59= 56-27= 86-58= 52+23= 35+17= 86-45= 40-12= 63-37= 50+22= 75-33= 12+29-19= 33-17+15= 71-15= 46-28= 43-27= 79-64= 85-50= 23+32= 76-18= 55+17= 38-16= 70-42= 83-56= 48+35= 69+10-36= 75-36+10= 61-39= 72-17= 76-38= 75+17= 48-36= 53+36= 42-37= 63-49= 42+13= 75-55= 15+56= 38+46= 27+12-28= 72-54+12= 85+7= 68-57= 42+59= 60-37= 60-37= 46-38= 75+17= 92-59= 42-16= 62-56= 48-26= 42-19= 67+27-37= 65-39-15= 62-18+24= 86-12-15= 88-34+18= 51-42+53= 75+24-23= 63+12-42= 21+82-60= 44-5+12= 67-47+22= 65-33-18= 76-63+1= 43-29+13= 17+27-10= 75+15-30= 54+21+18= 57-33+31= 85-36+27= 77-65-6= 32+45-38= 53-37+15= 36+34-14= 100-76+22= 21+82+17= 85-28-28= 53-29+19= 71-52+36= 73+12-71= 68-65-3= 63+18+11= 55+38-15= 92-6+11= 36-27+9= 12+79-62= 81-45+36= 63-23+28= 72-45+32= 83-27+10= 54-52+17= 65+15-47= 77-38+42= 54-41+36= 42-37+54= 35+12-28= 77-19-16= 51-27+28= 75-24+26= 24-16+40= 48-26+18= 21+82-60= 54-21-18= 54+21-18= 88-51-24= 77-34+55= 77-64+22= 60-34+35= 99-88+77=