2×986-424×4 86 - 24 = 62 - 31 = 66 - 18 = 85 - 11 = 53 21 = 28 24 = 18 75 = 12 46 = 39 37 = 40 33 = 32 22 = 23 58 = 28 71 = 36 55 = 38-( )8( )×424
2×986-424×4 86 - 24 = 62 - 31 = 66 - 18 = 85 - 11 = 53 21 = 28 24 = 18 75 = 12 46 = 39 37 = 40 33 = 32 22 = 23 58 = 28 71 = 36 55 = ( )×42432 38 =
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34 31 = 44 35 = 31 52 = 4 × 4 = 12 ÷ 3 = 19 30 = 33 39 = 98 -32 = 85 - 35 = 3 × 4 = 2 ÷ 1 = 74 -27 =87 - 36 = 2 × 4 = 16 ÷ 4 = 79 - 33 = 45 31 = 62 27 = 96 -
34 31 = 44 35 = 31 52 = 4 × 4 = 12 ÷ 3 = 19 30 = 33 39 = 98 -32 = 85 - 35 = 3 × 4 = 二年级口算和应用2 ÷ 1 = 74 -27 =87 - 36 = 2 × 4 = 16 ÷ 4 = 79 - 33 = 45 31 = 62 27
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口算:9×9= 4610= 6540= 81÷9= 55-20=946= 9÷3= 9÷9= 5832= 80-28=3360= 54÷6= 40÷8= 5×4= 61-13=15÷5= 9×3= 42-15= 18÷9=
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二年级(下)数学天天练(二)班级 列竖式计算 列递等式计算(能巧算要巧算)÷3979709×29×542÷7×4 5×6-6×3 2×5×3 4×64×2 24÷4÷3 18÷3÷3 4×2×437
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