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1、七年级上数学专题训练有理数混合运算100题姓名:9.&(丄丄 +3 2114 742rr I10.-13x-0.34x_ + 3x(-13)-x0.347 12 3，L(-心朴討诗0.8x+ 48x(-)-22-r11712.13.(1650 + 3) -r (2)13474.(+)x(-15x4)6 20 5 12IX14.专心一斗15,178-87.21 + 43+ 53-12.792J 212兮冷16. (-6) x () + (-32) + (-8) -3吩-心1+护(-中28.29.3n271094+ (-)-(-3-)(-27+)x(-24)112 3 4 1237. 30-G+g
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5、 (l2)x(l5)x +A30)参考答案1.45X52.843.5991054.65.0.46.14277.-10&259.910.-13.3411.-212.-6-413.-31.514.415.17516.2517.上7IK.3119.8320.4.73Z 1.5022.-4-323.-4.2224._225.7 _626.50327.-632&-15丄1129.4 111030.11Z331.15400032._5_63311-834.4石35.45436.-2537.38.-113913640.-5241.042.-643.1644.9245.4346._2200247.148.Y丄249.-57丄250.-4052.453.一 2054.-3055.4 356.-757.-10605&丄259.1060.-2761.1662.1263.81_?664.865.532066.67.-261X68169.-812370.9671.-472.-2-273.-5174.75.2*125991001276,878.1379.24丄580.281.4582.28-483.2784.5585.286.-787.一 188.4-889.-690.891.-1丄292.4193.一2 594.295.10096.-697.-250298.999.5.03100. 0
