计算下面各题,怎样简便就怎样计算。
(1)$700\div25\div4$ (2)$12000\div8\div125$ (3)$600\div12\div5$
$=700\div(25\times4)$ $=12000\div(\square\times\square)$ $=600\div(\square\times\square)$
$=700\div\square$ $=12000\div\square$ $=\square\div\square$
$=\square$ $=\square$ $=\square$
(4)$5600\div35$ (5)$180\div15$ (6)$720\div18$
$=5600\div7\div5$ $=180\div3\div\square$ $=720\div\square\div\square$
$=\square\div5$ $=\square\div\square$ $=\square\div\square$
$=$ $=$ $=$
(7)$3600\div25\div4$ (8)$25000\div125\div8$ (9)$1100\div4\div25$
$=$ $=$ $=$
$=$ $=$ $=$
$=$ $=$ $=$
(10)$810\div45$ (11)$2700\div36$ (12)$900\div5\div6$
$=$ $=$ $=$
$=$ $=$ $=$
$=$ $=$ $=$
(1)$700\div25\div4$ (2)$12000\div8\div125$ (3)$600\div12\div5$
$=700\div(25\times4)$ $=12000\div(\square\times\square)$ $=600\div(\square\times\square)$
$=700\div\square$ $=12000\div\square$ $=\square\div\square$
$=\square$ $=\square$ $=\square$
(4)$5600\div35$ (5)$180\div15$ (6)$720\div18$
$=5600\div7\div5$ $=180\div3\div\square$ $=720\div\square\div\square$
$=\square\div5$ $=\square\div\square$ $=\square\div\square$
$=$ $=$ $=$
(7)$3600\div25\div4$ (8)$25000\div125\div8$ (9)$1100\div4\div25$
$=$ $=$ $=$
$=$ $=$ $=$
$=$ $=$ $=$
(10)$810\div45$ (11)$2700\div36$ (12)$900\div5\div6$
$=$ $=$ $=$
$=$ $=$ $=$
$=$ $=$ $=$
答案:
(1)700÷25÷4 =700÷(25×4) =700÷100 =7
(2)12000÷8÷125 =12000÷(8×125) =12000÷1000 =12
(3)600÷12÷5 =600÷(12×5) =600÷60 =10
(4)5600÷35 =5600÷7÷5 =800÷5 =160
(5)180÷15 =180÷3÷5 =60÷5 =12
(6)720÷18 =720÷3÷6 =240÷6 =40
(7)3600÷25÷4 =3600÷(25×4) =3600÷100 =36
(8)25000÷125÷8 =25000÷(125×8) =25000÷1000 =25
(9)1100÷4÷25 =1100÷(4×25) =1100÷100 =11
(10)810÷45 =810÷9÷5 =90÷5 =18
(11)2700÷36 =2700÷9÷4 =300÷4 =75
(12)900÷5÷6 =900÷(5×6) =900÷30 =30
(1)700÷25÷4 =700÷(25×4) =700÷100 =7
(2)12000÷8÷125 =12000÷(8×125) =12000÷1000 =12
(3)600÷12÷5 =600÷(12×5) =600÷60 =10
(4)5600÷35 =5600÷7÷5 =800÷5 =160
(5)180÷15 =180÷3÷5 =60÷5 =12
(6)720÷18 =720÷3÷6 =240÷6 =40
(7)3600÷25÷4 =3600÷(25×4) =3600÷100 =36
(8)25000÷125÷8 =25000÷(125×8) =25000÷1000 =25
(9)1100÷4÷25 =1100÷(4×25) =1100÷100 =11
(10)810÷45 =810÷9÷5 =90÷5 =18
(11)2700÷36 =2700÷9÷4 =300÷4 =75
(12)900÷5÷6 =900÷(5×6) =900÷30 =30
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