1、32+14-8 =46-8 =38362 =182 =9,25-12+45 =13+45 =58468 =248 =3,35-6-12 =29-12 =174889 =69 =54,8 22,15 29,21 35,23 37,3 15,5 25,7 35,9 40,(),改正:,34-17+3,=,17,+3,=,20,(),(),改正:,1833,=,6,3,=,18,56+13 =30+13 =43459+14 =5+14 =19,45-47 =45-28 =17842 =22 =4,19-486 =19-8 =1164-408 =64-5 =59,819,78, 9-3, 6, 32+
2、56, 88,-3,32+,9,6,56,88,56-(23+8) =56-31 =255(287) =54 =20(14+35)7 =497 =7,(24-18)9 =69 =5488-(46-18) =88-28 =6036(33) =369 =4,18+279 =18+3 =21(18+27)9 =459 =5,48-3 =32-3 =294(8-3) =45 =20,42+14 -35,79 -28,62- 15-3,( ),50-366,6+6 3,( ),54-22 8,( ),36164,1483-76,( ),( ),注意合理使用小括号。,答:上下两题运算顺序不同,但计算结果相同。,73-26+35 =47+35 =8272(33) =729 =863(44-37) =637 =9,(82-18)8 =648 =854-(62-34) =54-28 =2618+57 =18+35 =53,1.先看图说说从图上你获得了哪些信息?,2.要求一辆小汽车和4个小熊一共要多少钱,应先求出什么?,3.你能列综合算式解答吗?,25+84, 25+32, 57(元),32,48=32(元),25+32=57(元),35-3=32(元),328=4(元),答:剩下32元,可以买8个。,364,12+,12+8,5,( ), 205, 4, 12+9, 13,