四年级数学上册脱式计算100题之欧阳德创编

欧阳德创编 欧阳德创编 2021.03.07欧阳德创编 欧阳德创编 2021.03.072800+100+789(947-599)+7x6436x(15—276+23)时间：2021.03.07创作：欧阳德(93+25x21)x9723-(521+504)+25(39-21)x(396+6)507+13x63+498384+12+3x31[37—(7+6)]x3016x[(17-8)+3]28x(5+96+32)81+[(72-54)x9]57x12-560+35848-640+16x12 960+(1500-32x45)[192-(54+38)]x6(12+24+80)x5032x(25+125)123x18-123x3+85x12325x (24+16)178x99+178(140-70) x54 63+84x2+42490+7+24x545+240+12 15x7+85x7 (46-20)x30-90

25x27x4(40-4)x252400-80-25x27x4(40-4)x252400-80-14x2108-(83+360-60)(420+48)-(375-345)290(34x3+99)142-54-9+1475x4x2516x76-76x6720-36-299x53+53 450-2x142-54-9+1475x4x2516x76-76x6720-36-299x53+53 450-2x(16+9)245(45+39)125x (8x4)x5245(45+39)125x (8x4)x541x25-25420-(205-198)x4460-(29-18-3)420-(205-198)x4460-(29-18-3)(960-400)-70(140-70)x5463+84x2-42490-7+24x5(960-400)-70(140-70)x5463+84x2-42490-7+24x526x6-11015x7+85x7(46-20)26x6-11015x7+85x7(46-20)x30-90(40-4)x252400-80-14x2(40-4)x252400-80-14x2108-(83+360-60)(420+48)-(375-345)290-(34x3+99)(420+48)-(375-345)290-(34x3+99)142-54-9+1416x76-76x6(16+9)245-(45+39)41x25-25420+16x76-76x6(16+9)245-(45+39)41x25-25420+(205-198)x4-400)+7045+240+12100-35-25(140-70)x54490+7+24x526x6-11099x53+53450-2x125x(8x4)x5460+(29-18+3)(960124+78+2263+84x2+42(46-20)x30-9015x7+85x7(40-4)x252400+80-14x2 108-(83+360+60)(420+48)+(375-345) 290-(34x3+99)142-54+9+1416x76-76x6 99x53+53450-2x(16+9)245-(45+39) 41x25-25420+(205-198)X4460+(29-18+3)(960-400)+7043+315+5426-279+3 98-19x4+62 51+121x784x3-136+8(32+28)x6325+13x(