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五年级上册简便运算500道及答案

1) 311*8-8-8*112= 2) 98*100+197*98= 3) 6*3+6+194*6= 4) 12*15+12+182*12= 5) 304*10-10-10*105= 6) 17*180+17+17*17= 7) 85*82+17*85= 8) 336*20-20-20*137=

(1)2.5*32*0.125 =(2.5*4)*(8*0.125) =10*1 =10 (2)3.5-7+6.5 =3.5+6.5-7 =3 (3)1.2*2.5+0.8*2.5 =2.5(1.2+0.8) =25 (4)8.9*1.25-0.9*1.25 =1.25(8.9-0.9) =10 (5)12.5*7.4*0.8 =12.5*0.8*7.4 =74 (6)6.5*9.5+6.5*0.5 =6.5*(9.5+0.5) =6.5*10 =65 (7)0.35*1.

望采纳谢谢.(1)2.5*32*0.125 =(2.5*4)*(8*0.125) =10*1 =10 (2)3.5-7+6.5 =3.5+6.5-7 =3 (3)1.2*2.5+0.8*2.5 =2.5(1.2+0.8) =25 (4)8.9*1.25-0.9*1.25 =1.25(8.9-0.9) =10 (5)12.5*7.4*0.8 =12.5*0.8*7.4 =74 (6)6.5*9.5+6.5*0.5 =6.5*(9.5+0.5) =6.5*10

简单列举几个例子(1)3.5*101-3.5=3.5X(101-1)=3.5X100=350(2)3.5*2.7+35*0.73=3.5*2.7+3.5*7.3=3.5X(2.7+7.3)=3.5X10=35(3)2.5*2.4 =2.5X4X0.6=10X0.6=6(4)32.4*0.9+0.1*32.4=32.4X(0.9+0.1)=32.4X1=32.4.

0.25*0.28 0.125*3.2*2.5 35*40.2 0.25*4÷0.25*4 3.5*9.9 3.5*99+3.5 3.5*101-3.5 3.5 0.25*8.5*4 0.25*36 0.125*3.2*2.5 35*40.2【50道混合运算】50.6.5*(4.8-1.2*4)= 51.

=1.69*(3.3+5.7+1)=1.69*10=16.9

4.02-3.5+0.98 7.08-0.74-1.26 7.75*[20÷(3.24-3.04)] 4.05÷0.81+2.4 3.7*4.5-4.4*3.7 0.034*0.5*0.6 28.92-(13.2+8.92) 1.46*5+12.8÷0.4*7.5 7.6*〔(25.3-9.7)÷0.3〕*8.5 12.25-3.1+0.85-6.17 1.9-1.9*0.9)÷(3.8-2.8) 15.7*1.25*8 24.7*3.3+3.3*75.3 15÷

作业: 内容:加法运算定律 第一课时 班级: 姓名:基础大本营 一、在 里填数字.185+ = 45+185273+ = 49+ +360=360+二、运用加法交换律填上合适的数.500+400=______+______ 48+______=_____

(1)2.5*32*0.125=(2.5*4)*(8*0.125)=10*1=10(2)3.5-7+6.5=3.5+6.5-7=3(3)1.2*2.5+0.8*2.5 =2.5(1.2+0.8)=25(4)8.9*1.25-0.9*1.25 =1.25(8.9-0.9)=10(5)12.5*7.4*0.8 =12.5*0.8*7.4=74(6)6.5*9.5+6.5*0.5 =6.5*(9.5+0.5)=6.5*10=65(7)0.35*1.6+0.35*

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