小学100以内混合加减带括号经典题目(带问题详解).doc

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1、练习题一2.53-(47-38)=27.51-10+2=52.52-(16-8)=3.30-(22-11)=28.27-(3+22)=53.3-(2+1)=4.13-(2+6)=29.28-24+23=54.32-(7+12)=5.52-(51-47)=30.31-(7+2)=55.18-(2+12)=6.5+1-2=31.19+35-3=56.43-(42-5)=7.44-(16+14)=32.43-18+12=57.23-(4+1)=8.85-72+4=33.83-(23+51)=58.66-29+33=9.11-(4-3)=34.35+33-43=59.7

2、9+14-15=10.53-38+11=35.5+68-38=60.3-(2+1)=11.44-(16-8)=36.21+37-3=61.67-43+32=12.4+87-48=37.76-(64-11)=62.77-(63-37)=13.76-(69-55)=38.74+12-26=63.94-(62+23)=14.41-67+55=39.75-(46+24)=64.65-(54-50)=15.27-(18+2)=40.60-(24-6)=65.66-(28+26)=16.4-(1+2)=41.7-(1-1)=66.32+8-24=17.7-2+35=42.4

3、5-85+51=67.25-(7-6)=18.6-(3-1)=43.42-26+45=68.91-(86-71)=19.20-(19+1)=44.50+11-11=69.46-(7-5)=20.50-(6-2)=45.42-(26-14)=70.82+17-17=21.29+68-77=46.80-68+2=71.38+59-48=22.76-(25-23)=47.66+2-18=72.59-(51-44)=23.41-37+37=48.25+61-20=73.55-(13+34)=24.84+1-56=49.58-34+13=74.29-(25+2)=25.5

4、8-32+10=50.97-(4-1)=75.53-32+31=练习题二1.33-(27+1)=26.95-(64-2)=51.67+2-19=2.68-30+17=27.26-24+12=52.86-(8+22)=3.32+45-23=28.19-0+47=53.24-(14+2)=4.65-(64+1)=29.83+15-22=54.16-8+0=5.19-(4-2)=30.25-(11-5)=55.71-(49+21)=6.54-(36-23)=31.30-(19-4)=56.0-(0-0)=7.19-(16-4)=32.42-(20-10)=57.40-

5、62+50=8.26+27-23=33.86-(49-2)=58.24-(6+7)=9.10+75-69=34.37-(14+4)=59.37+44-76=10.44+41-54=35.34-(30-24)=60.81-12+5=11.50-37+9=36.28-(25-11)=61.30-(9+4)=12.49+18-42=37.59-(57-8)=62.67+30-82=13.81-(42+7)=38.38+33-45=63.70-(25+2)=14.29-19+60=39.30-(17-3)=64.81-(64-56)=15.7-74+69=40.54+2

6、5-41=65.23-(15+1)=16.52-83+42=41.98-(37+12)=66.88-80+4=17.11-72+68=42.56-19+19=67.15+1-7=18.12-(10-8)=43.57-(21+24)=68.23-(16-6)=19.23-21+0=44.38+5-23=69.60-22+32=20.46-(4-3)=45.73-(3-2)=70.85+8-26=21.59+28-78=46.62-37+16=71.72-(17+49)=22.79+15-33=47.62-48+11=72.80-(18-12)=23.8-(2+1)

7、=48.30-(1+4)=73.20-(3+16)=24.18-12+2=49.5+77-51=74.2+35-14=25.4+71-16=50.1-(1+0)=75.22-(4+14)=练习题三1.0+23-7=26.15+78-57=51.63+30-60=2.83-(39-11)=27.43-21+24=52.67+21-56=3.74-19+13=28.28-(24-22)=53.68+30-18=4.64-(57-54)=29.87+9-86=54.83-(26-19)=5.91-(88-49)=30.32-(23+7)=55.12-(6-2)=6.7

8、8-(61+6)=31.