5 混合运算第1课时混合运算(一) Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 。 20+30-10= 40-9+20= 4×5÷4= 40 ÷5×3= 14÷7×8= 8 ×3÷6= 48÷8÷2= 6 ×6÷4= 12÷3×5= 3 ×6÷2= 4051 524 164 39 209 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. ,再列综合算式。 6849 23+45-19=49 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 1836×3÷6=3 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 。(对的在括号里打“√”,错的打“×”,并在旁边改正过来)改正: 75-18+12 =57+12 =69 × Evaluation only. Evaluation only. Created with Client Profile . Created with
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