题目内容

【题目】

直接写出得数.

4+4.73=  ÷9=  ×÷×=  4 ﹣4 =   

375÷1 =  ×2÷×2=  36+0.4=  5×32×2.5=   

1÷0.9= 8×(12+0.5)=  =  =   

=  =  =  =   

=  =  =  =   

=  =  =  =   

35+0.4=  8×(12+0.5)=  4×0.8×2.5×12.5=  =   

=  =   

【答案】8.73436.440010085.925122;5.7;3;35.4100100201110

【解析】

试题分析:×÷××2÷×2,先把除法变成乘法,再根据乘法结合律简算;

5×32×2.5先把32分解成8×4,再运用乘法结合律简算;

运用加法结合律简算;

4×0.8×2.5×12.5运用乘法结合律简算;

先算乘法,再根据连续减去两个数等于减去这两个数的和简算;

先去掉小括号,然后再根据加法结合律简算,最后算括号外的乘法;

先把分解成,然后再运用加法结合律简算;

其它题目根据运算法则直接求解.

解:

4+4.73=8.73, ÷9=×÷×=, 4 ﹣4 =

375÷1 =×2÷×2=4, 36+0.4=36.4, 5×32×2.5=400,

1÷0.9=, 8×(12+0.5)=100, =8=

===5.925, =12,

==2, ==

=5.7, =3, ==

35+0.4=35.4, 8×(12+0.5)=100, 4×0.8×2.5×12.5=100, =20,

==1110.

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