1、5 = 31072 =512 = 38 3816 =3812 = 5624 =23 = 1013 144- =1210=354=5614 = 569 =239= 23 = 38 1212= 389=2332= 58 =59 34 = 59 1416= 5416 = 18 =15 290= 13 = 14 2512= 56 =712 31445 = 359 = 718 =23 910100= 42518 = 16 =411 11417 =9165 = 34 =38 1212=380= 13 = 38 1212=380= 13 =14 2512= 56 = 712 31445 =359 = 718
2、 = 23 910100=42518 = 16 = 411 11417 = 9165 =34 = 14 2512=56 = 712 31445 = 359 = 718 = 23 910100= 42518 = 16 =411 11417 = 9165 = 3432= 58 =59 34 = 59 1416= 5416 = 18 = 15 295 = 31072 =512 = 38 3816 =3812 =5624 =23 = 1013 144 =1210=354=5614 = 569 =239= 2345 =359 = 718 = 23 910100=42518 = 16 = 411 1141
3、7 = 9165 = 34 = 38 1212= 380= 13 = 38 1212=380= 13 = 14 2512= 56 = 712 31445 =359 = 718 = 23 910100= 42518 =16 =411 11417 = 9165 = 34 = 14 2512= 56 = 712 31445 =359 =718 = 23 91012= 56 = 712 31445 =359 = 718 =23 910100= 42518 = 16 =411 11412= 380= 13 = 59 34 =59 1416= 5416 = 18 = 15 295 = 31072 = 51
4、2 =38 3816 =3812 =5624 = 23 =1013 144- =125- 9= 236- = 38 1212= 380=139= 2332= 5810=354=5614 = 569 =239= 23 = 38 1212= 380= 13 = 14 2512= 56 =712 31445 =35100= 42518 = 16 = 411 11417 = 9165 = 34 = 38 1212= 380= 139 = 718 = 23 910 =14 2512= 56 = 712 31445 =359 = 718 = 23 910100= 42518 = 16 = 411 1141
5、7 = 9165 = 3432= 5816= 5416 = 18 =15 295 = 31072 = 512 =38 3816 =3812 =56 =59 34 =59 1424 = 23 =1013 144 = 1210=354=5614 = 569 = 239= 23 =38 1212=380=13 = 14 2512= 56 = 712 31445 =359 = 718 = 23 910100= 42518 = 16 =411 11417 =9165 = 344= 5612=3816 = 38100= 42518 = 16 = 411 114 =23 910写出下面各数的倒数。1/9 1
6、25/131 2/3 1/45/18 2/5 4/77/5 7/9 3/4 6/5 1/5 3/405/8 8/9 5/11填空1、棱长为 1 厘米的正方体,体积是( )。2、棱长为 1 分米的正方体,体积是( ) 。3、棱长为 1 米的正方体,体积是( ) 。4、1 升=( )立方分米1 毫升=( )立方厘米1 立方米=( )立方分米720 立方厘米=( )立方分米填上合适的单位。一苹果的体积约是 120( ) 。一个西瓜的体积约是 8( ) 。一 台冰箱的容积约是 150( ) 。一 个火柴盒的体积约是12( ) 。一 个墨水瓶的容积约是60( ) 。一个热水瓶的溶剂约是 2( ) 。一块
7、橡皮的体积约是 10 ( ) 。一 本词典的体积约是 900( ) 。一个文具盒的体积约是0.35( ) 。一个讲台的体积约是 0.6( ) 。计算体积。1、一个长方体,长 20 厘米,宽 12 厘米,高厘米。2、一个正方体,棱长是 6分米。3、一个长方体底面积是 60 立方厘米,高 7 厘米。4、一个长方体,底面是边长为 2 平方分米的正方形,高 5 分米。算一算。121/2= 3/112=32/9=9/1612= 107/15= 3/416=77/10= 43/13= 215/14=121/4= 1/33= 1/93= 5/22= 4/52= 61/2= 3/44= 7/96/5= 1/5
8、+1/4=9/43/2= 5/185/18= 8/32=6/139= 5/810= 8/156=161/2= 28.51.5= 428=81/4= 1/52/3= 77/5=直接写得数3/45/6= 3/71= 5/87/15=02/3= 8/159/16= 4/52/3=练一练4/51/107/12= 5/94/58/27=8/117/83/8= 3/7141/3=1、 计算题3/7 49/9 - 4/3 12 5/6 2/9 3 1、计算4.8 5/4 + 1/4 4/7 5/9 + 3/7 5/9 5/2 -( 3/2 + 4/5 ) 7/8 + ( 1/8 + 1/9 )2、简算190
9、354)610(5242135直接写得数5/93/10= 1/24/7= 7/92/3= 2/52/5= 5/93/9= 5/72/5= 3/42/5= 5/63/5= 4/712=2、计算3/4 8/9 - 1/3 7 5/49 + 3/14 84/5+8 11/5 31 5/6 5/6 5/9 18 14 2/7 4/5 25/16 + 2/3 3/4148/75/6 12/15 17/32 3/4 9/24 45 2/3 + 1/3 15 7/19 + 12/19 5/6 8/7 21/16 + 1/2 101 1/5 1/5 21 8716162531255/93/9=5/72/5=
10、5/93/9= 5/72/5= 1、 写出下面的百分数百分之十五( ) 百分之三十( )百分之十四点六( ) 百分之零点四( )2、 把下面小数分数化成百分数0.35=( )% 1.02=( )% 1=( )% 0.012=( )% 3/5=( )% 7/8=( )%13/10=( )% 1/5=( )% 3、 把百分数化成分数60%=( ) 32%=( ) 26%=( ) 45 %=( ) 95%=( ) 68%=( ) 37%=( ) 18%=( )1、 把下面百分数化成小数15%=( ) 25%=( ) 16%=( ) 79%=( ) 35%=( ) 49%=( )12.5%=( ) 2
11、4.9%=( ) 13.5%=( )29.7%=( )15.1%=( )46.2%=( )把百分数化成分数40.5%=( ) 12%=( ) 28%=( ) 4.5%=( ) 25.5%=( )24.0%=( ) 11%=( ) 29%=( ) 53%=( ) 49%=( ) 42%=( ) 17%=( ) 1、口答(1)8 是 5 的百分之几?(2)5 是 8 的百分之几?2、求出下面的商,并且所得的商化成百分数。38 2016 3.57 22.4143、一个田径队有男生 20人,女生 15 人,男生人数是女生人数的百分之几?4、一个田径队有男生 20 人,女生 15 人,女生人数是男生人数
12、的百分之几?1/74= 81/4=2/51/10= 5/64/3=63/8= 1/520/3=5/824/25= 7/123/14=18/9= 4/77/25=3/827= 5/93/10=1/55= 395/13=2/70= 2/75=1/23= 3/46=2/33/4= 27/ 203/4= 1/41/3= 14/9= 124/7= 714= 3/511/5= 7/157/3=204/5= 4/520= 1、口答(1)8 比 5 多百分之几?(2)5 比 8 少百分之几?2、求出下面的商,并且所得的商化成百分数。18 3012 4.59 22.4144、某厂的一种产品,原来每件成本 96
13、元,技术革新后,每件成本降低到了 84元,每件成本降低了百分之几?819/5= 4411/10= 2/102/7= 93/23/85/6=05/7= 7/127/4 = 63/8=21/103/5= 8/272/9= 5/82/3= 1/92/3= 7/905= 101/4=5/168/15= 1/64/9=4/96=1/53/20=3/85/6=05/7= 21/103/5= 8/272/9= 353/14= 2/73/7= 72/7=6/73= 5/83/8= 14/157/5= 8/54/5= 3/251/10= 21/207/3= 1/24= 7/416= 9/103/5= 8/114
14、/9= 3/161/2= 8/53/4= 122/3=6/131/2= 1/63=5/83/8= 14/157/5= 21/207/3= 1/24= 11/4= 1/25/8= 1/47/3=1/103/5= 3/53/4=422/3= 1/32/3=42/57/10= 563/7= 125/8= 7/95/14=6/1313/4= 4/510= 123/7= 61/7= 3/102=54/15= 243/8=152/3= 1/84=92/27= 1003/5=7/93/4= 6/75/6=27/164/5= 8/99/8= 77/13= 3/251/10= 1/68/15= 3/53/4=
15、422/3= 1/32/3= 42/57/10= 7/95/14= 6/1313/4= 353/14= 9/255/6= 12/131/4=22/3=3/43/5=+ 2515- 4727+ 5818+ 1929+ 1616- 2313+ 910 110- 712512+ 2515- 47275/74/5=1202/3=1/30= 4/52=5/112/3= 8/92/6=71/12= 6007/12=5/6-1/3= 5/3+7/9=3/53=6/134=8/1510= 8/56=3/86=3/515=3/46= 71/14=153/5= 204/5=8/92/3= 204/5=153/5=
16、8/92/3= 3/416= 5/95=93/5=2/33/2=1/2+1/3= 2/33=5/45/8= 2/330=402/5= 15/12=1/31/3= 2/52=5/84/5= 264/13=5/215/6= 212/7=1/74= 81/4=2/51/10= 5/64/3=63/8= 1/520/3=5/824/25=7/123/14=18/9= 4/77/25=3/827= 5/93/10=1/55= 395/13=2/33/4= 27/ 203/4= 1/41/3= 14/9= 124/7= 214= 3/511/5= 7/157/3=204/5= 4/520= 21/103/
17、5= 8/272/9= 5/82/3= 1/92/3= 计算下列各题819/5= 4411/10= 2/102/7= 93/23/85/6=05/7= 7/127/4 = 63/8=5/83/8= 14/157/5= 8/54/5=3/251/10= 21/207/3= 1/24= 7/416=9/103/5= 8/114/9=3/161/2= 8/53/4= 122/3=6/131/2=1/63=3/53/4=422/3= 1/32/3=42/57/10= 563/7= 125/8= 7/95/14=6/1313/4= 4/510= 123/7= 7/164/5= 8/99/8= 77/13
18、=3/251/10=61/7= 3/102=54/15= 243/8=152/3= 1/84=92/27= 1003/5=7/93/4= 6/75/6=9/255/6= 12/131/4=22/3=3/43/5=+ 2515- 4727+ 5818+ 1929+ 1616- 2313+ 910 110- 7125125/74/5=1202/3=1/30= 4/52=5/112/3= 8/92/6=71/12= 6007/12=5/6-1/3=5/3+7/9=3/53=6/134=8/1510= 8/56=3/86=3/515=3/46=71/14=153/5= 204/5=8/92/3= 20
19、4/5=153/5= 8/92/3= 3/416= 5/95=93/5= 2/33/2=1/2+1/3= 2/33=5/45/8=2/330=402/5=15/12=1/31/3=2/52=5/84/5=264/13=5/215/6= 212/7=算一算。14= 105= 73=11/4= 101/5= 71/3=8/96=4/1512=3/85= 6/139= 5/810= 8/156=1/25= 4/52= 1/44=算一算。41/2= 22/3= 21/3=41/3= 41/4= 21/2= 82/3= 5/123=61/4= 2/31/5= 4/92/3=8/34= 1/33/4= 5/61/4= 7/127= 5/77/5= 6/53=101/2= 255/6= 5/64/3=63/5= 63/4= 61=63/2= 65/2= 31/4=62/9= 44/9= 41/3=答算一算。3/44= 7/96/5= 1/5+1/4=9/43/2= 5/185/18= 8/32=2/54= 4/77/4= 1008/15=3/75/9= 128/5= 2/34/15=5/1215/4= 6/253/10= 7/203/10=