1、. . . . . .1.口算下列各题5 = 31072 =512 =38 3816 =3812 =5624 =23 =1013 144- =1210= 354= 5614 =569 =23. . . . . .9=23 =38 1212= 3832=58 =59 34 =59 1416=5416 =18 =15 290= 13 = 14 2512=56 = 712 314. . . . . .45 =359 = 718 = 23 910100=42518 =16 =411 11417 =9165 =34 = 38 1212=380=13 = 38 12 =14 25. . . . . .12
2、=56 = 712 31445 = 359 = 718 = 23 910100=42518 =16 = 411 11417 =9165 =34 = 14 2512= 56 = 712 314. . . . . .45 = 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 =23. . . . . .9
3、=2345 =359 =718 = 23 910100=42518 = 16 =411 11417 = 9165 = 34 = 38 1212= 380= 13 = 38 12. . . . . .12=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. . . .
4、 . . =411 1146.55 6.5= 10.85= 4.733.9=47.33.9= 47.30.391=0.4730.39=2.4511.25 0.450.096.20.03 0.1250.1259.92.50.4. . . . . .90.180.2516 0.783.054 6.825.23.054.847.30.391= 0.4730.39=0.450.096.20.0312= 380= 130.771.1=. . . . . .1.2-0.08= 8- 0.52= 2.5 3.6 = 4. 9.46= 5.0.80.92= 1.30.45.430.86=78.583.7=0.
5、851.01 =92.3=0.10.01 = 0.2835=4.684.5=. . . . . .0.250.5=2.51.25= 25.73.29=6.7125.7=8- 0.52= 2.5 3.6 = 0.450.096.20.031.050.117.57.525.5111.60.5=2.50.4=. . . . . .0.360.9=1.258=1.60.4=0.484=0.90.6=13.2+4.8= 6.3-0.9= 0.252.4=31.03=9= 2332= 58 =59 34 =59 14. . . . . .2.50.4=0.360.9=1.30.45.430.86=16=5
6、416 =18 =15 295 = 31072 =512 =38 3816 =3812 =5624 =23. . . . . . =1013 144- =129=23 = 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 12. . . . . .12=380= 139 = 718 =23 910 =14 2512= 56 =712 31445 =35
7、9 =718 =23 910100=42518 = 16 =411 114. . . . . .17 = 9165 =3432= 5816=5416 =18 =15 295 = 31072 =512 =38 3816 =3812 =56 =59 34 =59 14. . . . . .24 =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=561
8、2=3816 =38100= 425. . . . . .14=105= 73=11/25=4/52=1/44=18 =16 =411 114 =23 91041/2=22/3=21/3=. . . . . .41/3=41/4= 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=71/5=43/4=1/125/8=478
9、=623=138=2/31/9=542/3=357/4=161/2=28.51.5=428=. . . . . .81/4=1/52/3=77/5=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=写出下面各数的倒数。. . . . . .1/9 12 5/131 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
10、,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= 算一算。3/44= 7/96/5= 1/5+1/4=9/43/2= 5/185/18= 8/32=6/139= 5/810= 8/156=
