计算(200道)列竖式计算23×34 67×48 56×76 64×21 49×62 91×35 21×89 52×77 52×19 65×4812×18 43×26 73×25
100道四年级简便运算练习题25×42×4 68×125×8 4×39×25 4×2516×25 4×25×16×25 36×99 (2515) ×4 (25×15)×4 49×4949×51 49×9949 (6832)×5
2800÷ 100789 (947-599)7×64 36×(15-276÷23) (9325×21)×9 723-(521504)÷25 (39-21)×(396÷6)507÷13×63498 384÷123×31 [37—(76)] ×30 16×[(17-8)÷3]
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能简算的要简算÷[14-()]====[60-()]÷====÷-× ====20×[(-)÷] =====28-(×) ===×5× ===777×9111×3 ===×〔()〕 ===(3×4)÷5 ==== ×4÷(63) ===×25× ===2÷÷2 ===194-÷× ===÷× ===5180-705×6 ===24÷-× ===(41212389)÷7 ==671×15-974 =
30.8÷[14-(9.851.07)]=[60-(9.528.9)]÷0.18=2.881÷0.43-0.24×3.5 =20×[(2.44-1.8)÷0.40.15] =28-(3.41.25×2.4) =2.55×7.12.45×7.1 =777×91111×3 =0.8×〔15.5-(3.215.79)〕 =(31.83.2×4)÷5 =31.5×4÷(63) =0.64×25×7.
21230×76 25232×83 71728×73 = = = = = = 93972×29 56536×83 65688×35 =
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