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1、!1!年级递等式计算专项训练384-16x680125x32x25488+137+263+22300 - 2730-91616 + 336 ) +2839x120-26x 1792- 32xx-40515+515321532+4258 x364+812- x 108(339-293) 2674-125125 28x x304652-27-486 x 28x14208x38-1786014706-25x307325x ( 946+86 )935-(704-693 )64 + 36x18(212 + 138)-50396-11x170-26x183900 400800 70)894-(420- +
2、25250 ) 703 + 307) -14015 x48-134 ( 9200x ( 1122+lOlllOxx-54x33759 4138613842324-11852-2415 ) xx 10452x53+53x482242-(711- 673)805-23x28(324-118 )xl5284+26x103900- ( 288-16 )(502-298 )-121449 x 145 16125x05298 - - 5514+x51x6715+21281280 + (20515199 x ) 36163876+ x330418625)(681-25x-310842577-(256+177
3、)49 - 25-1500150x27-3051362+76+238+144900-423x23375x54-9106x78-6x78llx ( 703 + 307 )3375-9x5455+45x245248x53+53xx78-68206868x72+28156-156-39 xx7512+25xl25265326 x - xx-3691728-x734436250)155 + 230 - ( 85528936256xx38 + 38x726138 - 138x4678 + 56- 78 + 144250x48134650-25x42525-25x(342 - 293)3200 - 888
4、 +112x880-204 x8843x(421+1679)+ 78x882216 -) + 15900-48 x( 2706-77423860272-802+208 ) xll (x - x x-134006718531747176-30015140 - 7400( 384+165+26-1300587 + 13x10720-45x12+320(226-118)x(800- 5)4620-60+47x2284x56-42762 + (8800-720)-20343+7x107(1255-795)x183764-(239+564)X-240015+ 85+)X68x72+2868 151741
5、174 - ( 233(2054604-x - x+ 5545255+-155) x 58244224356x15 + 206x48 - 926 356x125+7542x14784779 + 635-(179+535)3375-9x54304 x27-48648x53+53+53x51880-20x414706-25 x307x ( 946-86 )325 23 -735x5025777 x-326x 704-693 935-( 261515 - x )-30800254x x 106 46+2462 ( 5462-) 78-6784351-1998-2)74 - 10017 ) -2012-159 ( + ( 113102x900-423