二年级上连加连减混算题:11+12+23=12+4-7=76-2-19=73+23-20=16-2+4=70-10-2=73+3-9=65+15-0=90-4-2=44+5-2=37-6-4=46-2-10=44+3-10=90-2+3=6+36-8=32+13+1=45+5-1=11+29+4=77-20+5=3+15+5=96-11+3=71-20-1=76+20-16=80-30-21=13+2-9=80-22-28=70+4-5=32+30+12=50+4-10=9+17-7=27+8-10=60-10-50=46-11+4=19+2+15=60-1-4=43+16+6=43+20-4=40-10-3=7+12-7=36+5-4=45+21-3=31+2+6=77-10+12=77-50-2=40-1-20=65-11-3=40+0-4=49-40-5=9+19-1=3+27+2=17+19-18=71+4+5=50+50-0=1+12+7=60-9-5=43+2+1=70+1-7=39+21+5=2+25-10=3-1+79=90-26-24=45-4-10=47+12-5=40-30-1=10-3-1=45-6-34=33+4-6=78-18-0=2+33+30=19+2-10=24+5-6=37+7-4=11+6-13=60-5-13=2+55-40=70-18-12=62+3+4=34+4-13=90-10-2=3+27+3=36+5-2=78-18-12=51+13+14=90-7+5=10-1+50=50-2-3=44+4-2=73+3-20=5-0+40=78-12-18=42-2+19=39+3+5=69-18+10=2+30+55=3-2+89=73+20+4=75-5+2=68-17-10=4+33-6=41+3+16=
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