二年级两位数笔算72-46+38=65-38+26=79+16-56=55-36+27=84-27+16=69+（54-36）=56+44-26=4+27-16=68+23-29=74-26+32=61-38+26=66-(42-25)=69+19-39=73-36+27=30+(53-29)=93-(39-23)=16+77-26=82-27+16=70-23-9=71-（43-24）=91-46+38=65-39+26=47+46-56=56+34-26=56-37+29=30-(43-29)=91-23+24=94-29+96=92-（43-18）33-(31-23)=96-47+32=66-39+26=47+35-56=36+59-26=100-（23+29）=90-(71-23)=56-29+46=43-36+29=23+29+39=91-（95-29）=55-46+22=65-28+26=58+18-58=58-26+25=84-25+16=68-(81-22)=56+54-26=29+22+49=47+25-16=48+（42-24）=55-56+22=16+55-26=61-28+38=43-26+25=20+(52-28)=51-28-14=58+18-29=82-25+16=51-（43-24）=82-(51-22)=82-46+27=65-28+26=18+77-56=56+34-26=20-(42-28)=72-(40-22)=84-28+86=56-29+28=81-23+24=86-（42-24）=81-46+28=61-28+29=81+19-86=86-28-29=88-26+28=85-28+46=82-(28-22)=26+28+49=91-(26+28)=49+（87-28）=63-38+26=79+19-36=36+74-26=63-36+27=4+27-16=59+23-17=71-46+38=84-27+16=59+（41-24）62-(41-23)=92-76+32=61-38+28=79+19-19=16+77-26=30+(23-29)=93-(39-23)=82-27+16=18-36+27=73-23-4=63-39+26=71-（53-24）=93-46+36=91-36-48=36+54-26=55-36+29=94-29+36=93-(71-23)=92-23+24=30-(43-29)=93-(52-24)=92-96+3266-39+2619+76-8899-36+2930-(23+29)23+23+6496+99-2697-29+2699-（99-20）93-(39-23)33-46+2263-28+2638+18-3636+34-2619+23-1668-(28-22)81-23+16=53-26+2382+22-8661-28+2688+（33-24）73-36+2238+18-1616+33-2618-26+2383-23+1682-(28-22)51-22-420+(22-28)31-（23-24）83-46+2236+34-2663-28+2653-26+2840-(52-28)82-22+2412+78-3684-28+8688-（63-24）22-(28-22)95-86+2268-28+2688-86+9988-26+2880-(23+28)28+（86-28）91-38-2684-28+3622+22-3573-46+7265-78+2682-(28-22)55+28-5658+27-7684-27+26=69-(78-27)56+44-2672+27-844+27-2668+（42-24）77-76+7226+77-2692-78+2657+28-2691-76+2770+(27-28)72-27-481-27+2672-（43-24）87-(70-27)81-46+7284-28+8670-(67-29)77-(78-27)88-（43-24）93-15-3687-27+8496-78+2691-56+3226+47-3688-76+2888-28-3482+22+8470-(27+28)27+27+3455-46+2288-（88-28）80-(78-27)58+28-5765-28+2656+44-2658-26+2584-25+26=4+25-2655-56+2256+27-2688+（32-24）68-(37-18)62-28+2685-25+2626+55-2653-26+2520+(53-28)52-22-482-(28-22)52-（41-24）56+34-2665-28+2682-46+2258-26+2884-28+3630-(42-28)82-22+8498-86+2822-(28-22)68-29+2688-26+2888-（51-24）26+78-2689-(22+28)22+22+5782-(28-22)68+（55-28）77-46+3936+55-2684-27+26=58+28-7697-78+2694-76+2744+27-2667+27-3868-(74-27)88+（57-24）62-78+2678+28-2687-27+2692-76+7276-28+2726+77-4470+(63-28)77-27-488-46+7287-(72-27)72-（57-28）67-78+2678-76+2870-(47-28)76-27+3484-28+4685-（62-24）87-27-2477-(62-27)91-86+7292-78+2688-76+2870-(27+28)87-(78-27)83-28-3827+27+2467-28+2688-（92-28）77-46+2255+28-7626+74-2678-26+2784-27+26=72+22-6626+77-264+27-2668-(28-22)88+（27-24）78-26+2877-59+2254-26+2720+(22-28)72-22-462-28+2687-27+2672-（42-24）82-(28-22)83-46+2267-28+2638+55-7684-28+2676+21-5952-(62-28)88-（61-24）78-26+2870-22+4492-74+26
