1、乘法分配律练习（二）71385518%2 -)X605(18 + 9 ) X18(69 )人5(-2+ 1 *)X5(8 + -)X 27(205)(9 27)+工)(1830 )153124 - 8 ) x24-1 ) X20205 )X184317行X(4 +万)(37 ) X35613613 6 3 63 7437 xn + 7 xn38 XH+ H x38 092x141+0-92 x859223 53676275x +x x -x -12x 6+ “ X6274 27413513512161337一 x 513x 11.6-1.6 X1.39g-x 11.6+18.4 x-555-
2、7X5- 8+3- 8X5- 75X2- +7X2121X4 - 7+3- 7X63100X101乘法分配律练习（三）677X78527X28343635213X37203X35625X243434X35613X12527X262931X302728X27445X102538 X8345X2.5乘法分配律练习（四）15)X6030121(5X7X57(不15)X5X125(6X6X 184(7 +X7X92(20(8 +19427X27X32(20X20X8X12X (-3(5 +X 25X2471(工-5)X6X105-)X18X2926x5x(w+ ) 30)27X(18 + 30 )2乘
3、法分配律练习（五）77337710X 101- 105X99+ 510X 101- 106135X 7+ 一80.92X 99+0.92714X 137131.3X11-1.39X 19+ 一557 X 13+2 X20+ -3126X- +13g13517X9 +3x 19+ 二3X4 +239444乘法交换律和结合律练习（六）1X6 X5x- X344z X 5X 18 97X95217 x16xT5134x- x 14725351x- X6232745X4X-46x%8x )30 /17 X(125 X34)845217327乂 c X 27x-x-x -x -92714255455225-x 一 x -5106分数混合运算练习（七）126 x(7- 3 )(3215215+ 芯)251- u x254X62_2_95 X 10 + 107 - 4x61- 5x215947255X4712X6 +5122113 x( 4 + w )31 15 x( 6 + 3 )3553 - 5 X5错误！未定义书签12x( + + )12 (2464 )
