100以内加减混合运算口算题
100以内加减混合运算口算题
100以内加减混合运算口算题44 + 8 - 37 = 1554 - 41 + 78 = 9129 + 48 - 48 = 2962 - 56 + 50 = 5625 + 61 - 61 = 2512 + 4 - 15 = 132 + 66 - 62 = 364 + 39 - 1 = 4210 + 62 - 50 = 2256 - 47 + 41 = 5025 - 16 + 64 = 7328 + 14 - 32 = 10100 - 23 + 8 = 8569 - 22 + 24 = 7187 - 79 + 81 = 8932 + 10 - 4 = 3839 - 26 + 63 = 7641 + 8 - 15 = 3421 + 63 - 24 = 60 52 + 28 - 43 = 37 5 + 95 - 39 = 61 90 - 58 + 22 = 54 88 - 56 + 29 = 61 66 - 32 + 37 = 71 54 + 17 - 39 = 32 92 - 68 + 26 = 50 35 - 25 + 57 = 67 65 - 20 + 33 = 78 68 - 39 + 39 = 68 71 + 14 - 29 = 56 63 + 4 - 54 = 13 69 - 49 + 65 = 85 66 + 26 - 7 = 85 1 + 15 - 7 = 934 - 10 + 53 = 77 43 + 57 - 52 = 48 13 + 69 - 17 = 65 83 - 76 + 53 = 6019 + 53 - 66 = 6 52 - 44 + 52 = 60 73 - 52 + 44 = 65 14 + 80 - 72 = 22 7 + 88 - 26 = 69 90 - 71 + 71 = 90 4 + 59 - 20 = 43 72 + 24 - 61 = 35 16 + 77 - 67 = 26 8 + 61 - 17 = 52 69 + 29 - 78 = 20 14 - 10 + 55 = 59 48 + 27 - 2 = 73 24 + 63 - 21 = 66 59 - 52 + 81 = 88 19 + 62 - 38 = 43 100 - 42 + 6 = 64 43 + 53 - 31 = 65 90 - 84 + 53 = 59 95 - 19 + 8 = 8444 + 28 - 16 = 56 97 - 87 + 86 = 96 34 + 56 - 21 = 69 77 - 27 + 19 = 69 97 - 90 + 84 = 91 93 - 93 + 85 = 85 14 + 4 - 2 = 16 37 + 20 - 31 = 26 60 + 22 - 65 = 17 49 - 42 + 88 = 95 72 + 14 - 10 = 76 86 - 13 + 20 = 93 49 + 42 - 16 = 75 79 - 74 + 83 = 88 63 - 11 + 16 = 68 14 + 21 - 23 = 12 50 + 35 - 19 = 66 72 - 43 + 64 = 93 26 + 68 - 76 = 18 19 + 41 - 1 = 5934 + 65 - 20 = 79 76 - 31 + 48 = 93 56 + 27 - 8 = 75 17 + 54 - 54 = 17 67 - 16 + 33 = 84 10 + 82 - 67 = 25 53 + 31 - 81 = 3 19 + 36 - 3 = 52 54 + 5 - 42 = 17 24 + 36 - 46 = 14 14 + 55 - 15 = 54 93 - 63 + 30 = 60 95 - 45 + 19 = 69 92 - 58 + 26 = 60 62 - 5 + 30 = 87 49 + 38 - 18 = 69 57 - 22 + 21 = 56 70 + 25 - 90 = 5 99 - 52 + 31 = 78 85 - 56 + 39 = 6872 - 11 + 6 = 6730 + 14 - 25 = 1936 - 3 + 44 = 7737-34+76=79.31+64-57=38.23+59-63=19.92-55+32=69.37-6+24=55.36+63-86=13.92-87+95=100.10+35-26=19.77-42+23=58.49+22-54=17.52+41-93=0.51+46-48=49.97-54+43=86.72-64+50=58.90-44+10=56.90-76+37=51.77-17+4=64.7+73-78=2.40-7+23=56.62+30-68=24.59-16+33=76.1+73-50=24.45+13-53=5.37+48-55=30.65-13+10=62.15+83-21=77.97-44+18=71.61-14+8=55.57-24+42=75.87-62+66=91.44+55-77=22.60-52+83=91.49-42+80=87.39+40-38=41.87-78+47=56.65-11+7=61.79-62+52=69.71-71+94=94.4+66-56=14.8+68-61=15.43+35-24=54.36+5-30=11.73-52+33=54.83-57+37=63.62-10+6=58.36-22+74=88.52+47-14=85.2+80-13=69.33+62-73=22.48-16+33=65.50-50+69=69.54+21-20=55.28+68-92=4.90-77+39=52.50+29-69=10.12+48-47=13.74-17+7=64.4+68-4=68.73+20-54=39.97-46+32=83.51-39+43=55.60-17+31=74.31+62-65=28.41-2+50=89.8+66-51=23.35+58-36=57.85+1-52=34.98-41+38=95.41+31-49=23.50+24-53=21.74+26-94=6.69-29+23=63.87+10-23=74.8+82-13=77.91-42+12=61.53+20-2=71.55-17+37=75.10+89-42=57.100-61+33=72.74+9-46=37.76-27+30=79.78+8-40=46.45+49-42=52.1+58-32=27.30+33-25=38.3+68-22=49.89-1+12=100.86-26+24=84.48-25+77=100.42+22-41=23.70-19+49=100.10+6-16=0.37+42-61=18.57-18+51=90.65+34-18=81.71+18-88=1.45+16-46=15.32+1-9=24.28+32-37=23.49+33-12=70.30+34-25=39.38+40-70=835+24-40=1913+19-13=1961+36-94=381-77+75=7964+7-55=161+46-14=333+70-34=3951+29-63=1730+67-74=2379+18-33=647+70-54=23 53-43+61=71 82-29+19=72 18+6-22=2 81-72+75=84 19+13-13=19 17-11+71=77 6+6-6=6 XXX88-56+35=67 11+85-58=38 50+33-28=55 18-7+68=79 61-9+10=62 90-69+47=68 XXX56-26+55=85 13+53-26=40 11+29-5=35 34+65-37=6210-2+51=59 83-24+2=61 48-30+41=59 48+18-40=26 80-39+57=98 25-16+82=91 93-22+4=75 34+5-22=17 62+3-62=3 30-28+57=59 61-29+25=57 84-30+5=59 58+17-18=57 80+16-81=15 69-8+39=100 19+71-24=66 80+4-83=1 64-34+62=92在这个练中，我们需要计算一些简单的加减法问题。
一年级数学100以内加减混合运算口算题(1800题)
练习一39-23-13= 45-9-34= 99-85-12= 98-12-84= 59+11+11= 34+18+12= 25+16+13= 14+7+14= 25-8+10= 27-13+20= 44-24+11= 52-28+9= 80-20-60= 84-20-25= 74-50-17= 64-34-17= 40-28+28= 43-29+27= 60-30+10= 18+30-11= 30+26+16= 7+18+17= 57+8+18= 62+9+19= 36-23+18= 45+9-34= 99-85+17= 98-84+19= 88-9-72= 82-10-68=练习二47-25+13= 78-25-15= 33+39-19= 58+60-28= 28+31-11= 42+36-22= 33+28-18= 36+25-36= 78+13-58= 66+50-56= 89-45-44= 93-12-31= 87-55-12= 66-33+4= 28+13+22= 26-19+24= 33+19-33= 47+14-27= 75-25+26= 34-18+36= 19+28-9= 33-18+35= 48+16-28= 73-11-22= 练习三69-47-11= 58-15-40= 72-35+16= 58-22-27= 5+37+27= 17+33+11=11+36-39= 40-38+19= 47-19-17= 67+23+3= 16+6+25= 6+18+16= 66+14+6= 90-18-10= 88+5-78= 78+10-68= 68-59+4= 57-48+29= 48-29-9= 55-11+46= 16+55-22= 20-5+45= 50-22+17= 54-25-25= 练习四56-28-8= 68-26-23= 41-19+10= 52-14+14= 48+18-37= 17+4+14= 75+16-5= 75+12-5= 18+28+11= 26+25+45= 48-29+10= 16+47-34=68-39-9= 75-37-30= 92-36-30= 65-30-29= 16+55+22= 58+22+13= 17+35-23= 56+14+24= 18+39+16= 16+35+25= 76-29-28= 91-22-20= 74-27-29= 93-44-42= 16+37+17= 练习五17-4+17= 75+16-45= 75-26+35= 18+28-17= 44-24-18= 67-39-19= 98-49+10= 48-8-21= 68-9-57=69+9-57= 48+23+10= 10+47+33= 46+36+19= 45+28+18= 88-44-38= 65-56-5= 35+35+10= 18+35+25=84-20+27= 74-50+19= 64+37-14= 18+4+14= 8+44+46= 27+44+13= 57+15+11= 38+25+12= 25+8+18= 练习六67-18+23= 16-7+25= 26+18-12= 66+15-16= 19+44+11= 66-20-18= 79-29-35= 33-4-20= 37-18-4=17+44+22= 8+44-43= 9+44-11= 11+44-22= 21+44-13= 16-7+25= 45-16-14= 77-18-50= 89-10-34= 83-44-23= 45-27+10= 4-65-16= 64-23-19= 66-17-33= 73-34-10=35+45+10= 27+32+23= 41+19+10= 练习七90-47+44= 99-53+35= 72-36+25= 50+25-24= 58+22-23= 79-38+27= 58-47+11= 58+15-40= 58+25-46= 88-44+37= 40+16-27= 63+23-18= 79-27+9= 38+29-19= 75-37+30= 36+28-8= 68+26-28= 55+25-25= 91-22+20= 67-39+9= 76-29+28= 44-24+18= 93-36+30= 60+30-29= 27+11-17= 33+3-20= 50+11-23= 34+12-17= 25+13-19= 14-7+14=48+18-21= 45+34-50= 64-56+5= 68+19-57= 66+28-16= 69+19-57= 88-44+38= 66+17-33= 63+23-19= 79+9-55= 20+25-17= 60-19+18= 72+18-79= 82-44+23= 49+39-15= 48+48-40= 47+19-17= 90-18+10= 25+19-14= 77+14-50= 57-18+11= 38-29+12= 25+33-13= 18-4+17= 84-65+28= 30+36-18= 15+16-17= 57-38+18= 30-13+28= 26-15+15= 练习九100-89+8= 42-17+28= 56-19+28=38+50+5= 27+18+1= 61+10-35= 12+54-63= 94-92+30= 69+11+5= 4-3+39= 91-7-62= 58+32-35= 78+10-86= 27+15-13= 55-47+67= 23+37-13= 24+33-33= 23+66-72= 78-59+40= 47+49-86= 47+44+6= 70-9+16= 57-12-39= 65+11+19= 67+26-36= 13-2+20= 17-3+4=练习十12+54-63= 33+31-13= 74-58+57= 23+17+16= 91-7-62= 56+43-87= 34+49-22= 87-57-21= 55-47+67=14+36+37= 57+40+1= 18+45+15= 43+35+11= 68+5+2= 19+16+32= 19+16+32= 38+50+5= 57-12-39= 42+28+5= 42+28+5= 94-92+30= 17-3+4= 97-69+30= 97-69+30= 练习十一58+32-35= 23+17+16= 61+10-35= 61+10-35= 23+37-13= 87-57-21= 4-3+39= 4-3+39= 47+49-86=15+38+32= 78+7+12= 82+11+6= 90+5+4= 12+57+13= 20+53+24=23+66-72= 12+54-63= 94-92+30= 70-9+16= 70-9+16= 91-7-62=58+32-35= 13-2+20= 13-2+20= 练习十二55-47+67= 23+37-13= 74-58+57= 15+38+32= 78-59+40= 47+49-86= 34+49-22= 38+50+5= 57-12-39= 65+11+19= 12+82-23= 94-92+30= 17-3+4= 12+54-63= 19+16+32= 58+32-35= 36+4-24= 57-39-4= 55+15-54= 40+27-37= 54-34+3=64+19-60= 99-39+3= 69+2-4=93-26-33= 43-20-13= 71-42+41= 练习十三19-4+50= 18+46-26= 49-6+12= 31+43-3= 56-28+35= 78-39-24= 82-61-20= 90-15-29= 11+14-11= 93+4+2= 87+10+7= 72+22+2= 69+16+6= 84+14+2= 14+16+30= 68-61-5= 65+25+7= 6+21+51= 28+56+1= 80+16+3= 70+4+17= 95+1+3= 34+11+52= 65+26+3= 1+86+4= 78+19+2= 87+7+1=练习十四47-25-3= 63-44-6= 44-19-18= 89-51-24= 32-24-3= 31-25-3=82-53-10= 85-44-8= 98-23-17= 54-37-16= 82-9-3= 98-97-1=96-84-2= 74-40-24= 47-18-11= 86-42-23= 63-55-5= 83-44-18= 91-28-24= 30-26-3= 64+20+13= 35-25-1= 32+12-5= 74+21+5= 21+77+3= 27+37-22= 72+17+8= 6-19-41= 83+16+1= 22-20+63= 练习十五85-49-14= 43+10+32= 45+63-62= 76-48-19= 53+23-43= 24-2+7=57+31-38= 80-66+58= 22+11-5= 46-43+76= 69-54+49= 27-9-2=46-43+76= 69-49+49= 66-25-6= 59+39-53= 69-54-15= 66-25-15= 14+12+25= 69-3-66= 66-25-6= 14+12+25= 53+28-28= 25+44-30= 练习十六61-27+9= 52+5-44= 22+11-5= 46-43+76= 25+67-14= 75+17-18=14+84-65= 18-10+21= 66-25-6= 14+15+25= 47-14-16= 14+15+21= 38+12+45= 65-5+9= 53+28-28= 65-5+28= 65-38+5= 29+45-14= 19+33-5= 59-35-14= 29+45-14= 49+27-44= 38-15+35= 49+27-44= 练习十七49+27-44= 18+62-65= 89-88+23= 68-62+65= 18+62-32= 10+83-81= 50-43+60= 10+34+25= 56+6-28= 57-26+25= 97-86-4= 22+11-5=41+21-22= 65-55+19= 78-5-13= 89-61+62= 98-57+51= 29+1-13= 87-70+80= 72-12+15= 47+34-73= 28+31-23= 83-50+2= 80-59+71= 练习十八14+85-92= 23+17+16= 91-7-62= 42+28+5= 23+37-13= 87-57-21= 55-47+67= 61-12-24= 47+49-86= 15+38+32= 97-46-46= 93-75+57= 51+5+37= 81-73-3= 2+20-5= 77+21-76= 77+21-76= 5+5+74=1+55+33= 45-14+9= 43+26-53= 88-7-12= 28+16+47= 24+67+7=9+31-30= 83-58+72= 71+10-51= 练习十九68-58-4= 58-49-2= 25+8+17=27+13+20= 44+24+11= 52+28+9= 90-47-42= 99-53-35= 72-36-25= 50-25-18= 17+33-11= 16+33-22= 17+33-33= 5+37-27= 43+28+28= 43+29-27= 57+17+18= 18+32+11= 85-25-25= 79-38-27= 64-55-5=47-38-7= 14+24+24= 47+23+11=14+26-24= 60-22+11= 26+15+15= 练习二十78-32-16= 55-28-12= 47-19-14= 18+33+12= 54+28+2= 32+19+8= 48-29-11= 98-33-22= 63-21-32= 69+22-22= 29+34-19= 51-38+19= 35+19+15= 73-29-13= 67-29+23= 53+9+17= 18+53-18= 47+26-27= 93-27+27= 81-19+15= 33+19+17= 65-19+15= 43-23-17= 69-21-1958+19+12= 34+17+36= 57-19-11= 87-19-27= 53+19+7= 38+15+32=88-7-12= 32+43-4= 34-30+59= 36+15-28= 83-58+72= 51-25+34= 30-1-16= 32+66-88= 34-30+59= 75-36+7= 9+54-14= 60+26-2= 30-1-16= 21+59-55= 81-73-3=2+20-5= 9+54-14= 63-53+58= 5+5+74= 22-2+35= 81-73-3= 59+3-18= 1+55+33= 45-14+9= 5+5+74= 60-24-15= 28+16+47= 24+67+7= 1+55+33= 51+5+37= 练习二十二71+10-51= 88-7-12= 28+16+47=71+10-51= 23+44+23= 32+66-88= 34-30+59= 36+15-28= 43+26-53= 60+26-2= 30-1-16= 32+66-88= 9+31-30= 2+20-5= 9+54-14= 60+26-2= 32+43-4= 22-2+35= 81-73-3= 2+20-5= 51-25+34= 45-14+9= 5+5+74= 22-2+35= 75-36+7= 24+67+7= 50-47+63= 练习二十三62-18+15= 24+75-83= 11+70+7= 72+10+15= 1+55+33= 45-14+9= 21+59-55= 88-7-12= 28+16+47=71+10-51= 21+5+22= 59+3-18= 34-30+59= 36+15-28= 18+76-79= 60-24-15= 30-1-16= 32+66-88= 77-47+47= 93-75+57= 9+54-14= 60+26-2= 37+38+12= 15+5+17= 69+29+1= 32+10+2= 11+72+9= 练习二十四27+14+10= 39+44+6= 12+10+21= 88+7+5= 62+22+6= 37+40+17= 81+11+2= 47+5+41= 11+2+34= 82+15+2= 55+21+8= 62+17+13= 33+24+2= 66+11+14= 84-23-4=63-50+60= 17+20+44= 13+48+20= 79-27-24= 50+2-39= 4+52-26=23-11+72= 98-89+57= 73+13-12= 练习二十五94-88+74= 46-22+46= 98-9-54= 16+7-16= 89-39+33= 89-16-49= 45-32-1= 62+30-63= 69+12-28= 85-67+9= 87-26-5= 94-60-14=55-44+10= 55-21-26= 7+8+35=28+35-40= 75-26-40= 10+63-51= 30+19+9= 70-28+44= 35+17-5=98-38-14= 66-28+60= 63+20+7= 练习二十六73+13-12= 58+29-79= 30+68-65= 83+2-37= 16+7-16= 17+20+44= 26+19-25= 87-26-5= 62+30-63= 4+52-26= 98-38-14= 7+8+35=94-60-14= 94-88+74= 58+29-79= 30+19+9= 28+35-40= 89-39+33= 17+20+44= 63-50+60= 70-28+44= 69+12-28= 4+52-26= 50+2-39= 86-61+33= 55-44+10= 94-88+74=练习二十七89-39+33= 16+7-16= 79-27-24= 35+17-5= 69+12-28= 62+30-63= 98-89+57= 47+45-30= 55-44+10= 94-60-14= 98-9-54= 66-28+60= 75-26-40= 28+35-40= 45-32-1= 30+68-65= 35+17-5= 70-28+44= 87-26-5= 26+19-25= 47+45-30= 86-61+33= 7+8+35= 98-38-14= 66-28+60= 72+19-88= 30+19+9= 58+29-79= 30+68-65= 14+48+2= 练习二十八34+30-32= 61+20+5= 18+26+2= 35-23+63= 25-12+54= 80+2-35= 82-67-7= 61+20+5= 67-5-58=8+63-49= 38+8-32= 80+2-35= 12+63-33= 86-16-47= 44-22+44= 8+63-49= 99-15-12= 46+7-12= 4+13-9= 86-16-47= 42+9+16= 74-68+26= 10+47+18= 46+7-12= 97-51+40= 93-50+56= 69+18-86= 练习二十九74-68+26= 85+3-19= 52-21-25= 29+10+51= 93-50+56= 4+85-49=63-56+17= 82-67-7= 61+20+5= 18+26+2= 73+19-70= 38+8-32= 80+2-35= 82-67-7= 14+48+2= 44-22+44= 8+63-49= 38+8-32= 34+30-32= 4+13-9= 86-16-47= 44-22+44= 25-12+54= 10+47+18= 46+7-12= 4+13-9= 67-5-58=练习三十69+18-86= 74-68+26= 10+47+18= 12+63-33= 29+10+51= 93-50+56 69+18-86= 99-15-12= 35-23+63= 52-21-25= 29+10+51= 42+9+16=97-51+40= 80+2-35= 82-67-7= 92-32-48= 85+3-19= 8+63-49= 38+8-32= 52-24+13= 4+85-49= 86-16-47= 44-22+44= 16+64+19= 69+18-86= 46+7-12= 4+13-9=练习三十一5+81-69= 29+10+51= 74-68+26= 10+47+18= 37-11-20= 14+48+2= 93-50+56= 69+18-86= 24+43+3= 39+38+12= 41+31-43= 47-40+80= 82-35+3= 64+14-57= 33+53-59= 3+82+4= 47-40+80= 30+19-34=37+54-43= 99-58+37= 23+64-34= 67-22-10= 56+36-73= 26-19+50= 10+16+13= 23+64-34= 15-7+42= 练习三十二49-30+24= 53+9+17= 10+16+13= 3+59-20= 64-63+14= 30+42-18= 53+9+17= 29+3-19= 92-24+28= 27-13+75= 30+42-18= 41+31-43= 58-29+5= 50+25-48= 27-13+75= 33+53-59= 77-11-35= 65-57+38= 50+25-48= 60+14-73= 100-22-8= 12+80-85= 65-57+38= 99-58+37=26-19+50= 43+16+12= 82-35+3= 练习三十三59-23+29= 49-30+24= 76-46+63= 47-40+80= 82-35+3= 64-63+14= 22+69-10= 3+82+4= 47-40+80= 92-24+28= 29+3-19= 67-22-10= 3+82+4= 58-29+5= 41+31-43= 23+64-34= 67-22-10= 77-11-35= 33+53-59= 10+16+13= 23+64-34= 100-22-8= 30+42-18= 53+9+17= 10+16+13= 20+5+38= 27-13+75= 30+42-18= 53+9+17= 43+16+12=50+25-48= 27-13+75= 30+42-18=76-46+63= 65-57+38= 50+25-48=27-13+75= 53-(47-38)= 30-(22-11)= 13-(2+6)= 52-(51-47)= 25-(11-2)= 44-(16+14)= 85-(72+4)= 11-(4-3)= 53-(38+11)= 44-(16-8)= 14-(87-78)= 76-(69-55)= 41-67+55= 27-(18+2)= 4-(1+2)= 47-(2+35)= 6-(3-1)=20-(19+1)= 50-(6-2)= 29-(68-59)= 76-(25-23)= 81-(37+35)= 34-(61-56)=练习三十五58-(32+10)= 33-(27+1)= 68-(30+17)= 32-(45-23)= 65-(64+1)= 19-(4-2)= 54-(36-23)=34)= 50-(37+9)= 49-(58-42)= 81-(42+7)= 29-(19-6)= 7-(74-69)= 52-(83-42)= 11-(72-68)= 12-(10-8)= 43-(21+10)= 46-(4-3)= 59-(28-17)= 79-(15+33)= 8-(2+1)= 18-(12+2)= 54-(31-16)= 30-(23-7)= 83-(39-11)= 74-(19+13)= 64-(57-54)=练习三十六91-(88-49)= 78-(61+6)= 92-(46+40)= 78-(4+9)= 70-(47-46)= 66-(42-35)= 46-(2+18)= 37-(32-26)= 53-(8-7)= 76-(18+23)= 15-(5+1)= 44-(36-29)= 84-(22-17)= 78-(33+33)= 39-(28-9)= 30-(17+9)= 38-(36-8)= 26-(96-88)= 19-(23-19)= 89-(62+21)= 22-(51-40)= 86-(24+45)= 91-(35-17)= 20-(6+11)= 19-(9-6)= 83-(65-37)=练习三十七9-(10-6)= 43-(15-8)= 84-(48+14)= 56-(5-3)= 33-(40-25)= 86-(65-37)= 31-(41-27)= 47-(7+25)= 21-(4-1)= 9-(3-1)= 93-(83+1)= 71-(30+4)= 42-(27-3)= 60-(35-14)= 67-(35+13)= 28-(13+6)= 14-(8-2)= 77-(43-19)= 89-(62+21)= 22-(41-23)= 86-(24+45)= 91-(35-17)= 20-(6+11)= 19-(9-6)= 83-(65-37)= 9-(10-6)= 43-(15-8)= 84-(48+14)= 56-(5-3)= 33-练习三十八86-(65-37)= 1-(1-1)= 47-(7+25)= 21-(4-1)= 9-(3-1)= 93-(83+1)= 71-(30+4)= 22+69-10= 12+80-85= 65-57+38= 50+25-48= 29+3-19=59-23+29= 12+80-85= 65-57+38=39+38+12= 82-35+3= 59-23+29=12+80-85= 15-4+19= 76-59+55=76-8-12= 25+16-27= 85-58+36=73-30-12= 72-59+71= 48+27-1=93-57-17= 25+16-27= 32+50-36=练习三十九40+48-17= 19-2-15= 11-3+35= 56+33-50= 68-9+31= 83-42+21= 34-14+8= 21+38-27= 11-3+35= 17+17+47= 12+67+6= 44+49-1= 34-14+8= 95-70+45= 76-8-12= 64-31+31= 12+67+6= 59+10-50= 72-59+71= 89-7-76= 76-8-12= 25+16-27= 32+50-36= 53-48+82= 练习四十72-59+71= 48+27-1= 92-41-1= 76-59+55= 32+50-36= 40+48-17=19-2-15= 11-3+35= 17+17+47= 85-58+36= 83-42+21= 34-14+8= 95-70+45= 93-57-17= 17+17+47= 12+67+6= 59+10-50= 13+39+47= 95-70+45= 76-8-12= 25+16-27= 72+10-15= 59+10-50= 72-59+71= 练习四十一48+27-1= 56+33-50= 39+35-40= 32-23+56= 17+48-37= 26+23+11= 12+15+19= 69-32-17= 57+23-62= 57+23-48= 57+23－72= 72-57+18=28= 28+24-16= 19+19-24=22+28+21= 81-32+18= 21+19-8=39+36-66= 65-39+26= 28+28-28=34+47-15= 91-19-56= 70-17+38=18+49+28= 22+49-22= 21-8+39=练习四十二66-27+19= 38+14+19= 29+27+26=37-29+16= 45+55-22= 100-65+26= 100-39-45= 24+47-26= 88-66+49= 28+19+17= 56+26-39= 67+27-45=51-22+39= 73-37+38= 29+36-29=30-13+68= 100-87+48= 66-39+47=65=26= 85-39+45= 24+47-26= 88-66+49= 28+19+17= 56+26-39=67+27-45= 51-22+39= 73-37+38=练习四十三29+36-29= 30-13+68= 100-87+48= 66-39+47= 25-18+37= 100-55+45= 75-25+47= 55+19-48= 72+69-132= 48-19+24= 90-37-28= 5+94-49=75-38-19= 49+24-65= 39+45-57=78-50+9= 72-2-30= 35+6-40=47+9-20= 17+3+15= 75+50+14=49+9-30= 28+20-2= 99-20+6=85-6-19= 6+24-30= 75-20-30=练习四十四62-5+7= 81-29＋17= 45+27-14= 82-29+36= 48+46-27= 59-33-12= 74-62-10= 71-36-10= 94-54+15= 68-38+7= 32-4-3= 45-22-11=88-45+28= 89-33-3= 61-44-6=77-54-14= 74-17-6= 57-33-1=76-71-3= 91-49-36= 89-60+13= 32-29-1= 84-66-17= 45+24+22= 34+41+17= 98+1+1= 12+31+30= 90+7+1= 77+12+1= 89+1+5=17+34+44= 38+52+5= 2+97+1= 43+5+12= 27+63+7= 63+17+19= 72+22+4= 55+9+20= 90+4+5= 27+21-24= 69+16+14= 3+83+13= 67+10+18= 73+23+2= 79+7+6= 14+19+27= 71+17+5= 19+71+8= 30+51-13= 66-33+18= 17+56-38= 5+74-49= 56+40-62= 65-26+20= 62-61+30= 56+41-52= 32+37-3= 练习四十六81-35+29= 99-79+6= 80-33+16=29-13+66= 17+24+45= 95-88+40= 57+4-28= 83-63-10= 15+77+2= 28-19-2= 26+5-1= 58+21+16= 72-68-3= 21+31-14= 66+18+10= 80-13-37= 85-78-3= 16+83-72= 96-34-26= 69-15-14= 83-81-1=73-70-2= 86-30-10= 98-67-5=练习四十七57-14-10= 35-24-5= 43-28-2=30-13-12= 72-15-9= 63-33-16= 98-58-32= 87+3+9= 86+12+1=19+52+27= 46+38+12= 46+28+10= 42+33+7= 43+12+37= 87+4+5= 49+26+20= 99-37+24= 44+55-12= 21+9+50= 68-23+26= 8+89+1=82+13+3= 41-10-3= 30-27-2=47-25-17= 74-9-3= 30-22-2=练习四十八70-25-7= 89-52-31= 90-76-6=87-54-13= 90-85-1= 68-59-7=33-23-9= 42-28-3= 30-15-5=70-42+33= 58-30+64= 35-28+2= 43-18+49= 40+58-32= 36+39-6=64-18+28= 73+10+2= 17-9-6=91+2+2= 82-69-7= 28-4+23=79-44-11= 67-33-3= 85+16-8=练习四十九40+34+13= 37+7+34= 75-15+20= 10+11+77= 76-46-22= 17+5+12= 32+51-25= 59-40-18= 76-22+74= 44-2-12= 90+7+2= 22-18-10= 45+24+11= 25+16-27= 32+50-36= 40+48-17= 21+38-27= 48+27-1= 92-41-1= 68-9+31= 44+49-1=40+48-17= 19-2-15= 11-3+35=34-14+8= 89-7-76= 11-3+35=练习五十17+17+47= 12+67+6= 53-48+82= 34-14+8= 95-70+45= 76-8-12= 15-4+19= 12+67+6= 59+10-50= 72-59+71= 42-32-6= 43-20-19= 63-20-19= 75-68-4= 36-17-6=。