四年级下册乘法运算定律练习
四年级下册 HYPERLINK "http://www.5ykj.com/shti/" \t "_blank" 乘法运算定律练习怎样算简便就怎样算
四年级下册乘法运算定律练习 怎样算简便就怎样算 8× 30 ×125 5× 63 ×2 25 ×26 ×4 ()()() 25 ×125 ×8 ×4 78 ×125 ×8 ×3 25 ×125 ×8 ×4 () 125 ×19 ×8 ×3 125 ×12 ×8 25 ×3 ×4 ()() 12 ×125 ×5 ×8 48 ×125 125 ×32 125 ×88 75 ×32 ×125 65 ×16 ×125 36 ×25 125 ×39 ×16 25 ×32 25 ×44 35 ×22 8× 11 ×125 25 ×4 ×12 () 75 ×32 ×125 4× 55 ×125 25 ×125 ×32 65 ×11 ×4 25 ×64 ×125 32 ×25 ×125 125 ×64 ×25 75 ×39 ×4 125 ×88 48 ×5 ×125 25 ×18 125 ×24 25 ×37 ×4 38 ×25 ×4 65 ×5 ×2 42 ×125 ×8 6× 15 ×9 () 246 ×32+34 ×492 321 ×46 —92 ×27 —67 ×46 35 ×28+70 43 ×126 —86 ×13 39 ×43 —13 ×29 21 ×48+84 ×13 68 ×57 —34 ×14 26 ×35+32 ×52+26 32 ×105 103 ×56 32 ×203 239 ×101 88 ×102 199 ×99 99 ×26 98 ×34 75 ×98 99 ×11 13 ×98 25 ×98 98 ×38 125 9× 825+12 ×4 125+40 ×8 (20+4) ×25 (+)()() 100+2 ×99 64 ×64+36 ×64 25 ×6+25 ×4 () 88 ×225+225 ×12 136 ×406+406 ×64 66 ×93+93 ×33+93

