1、 ( ) ( ) ( ) ( ) ( ) 分数单位: 分数单位的个数: ( )个 ( )个 ( )个 ( )个 ( )个 二、填上合适的数。 ( ) 1 21 3 = = ( )( ) ( ) 7 = ( ) 3 7 ( ) ( ) ( ) 6cm = dm 75cm = dm 946dm3 = m3 45dm = m 72cm2 = dm2 971mL = L ( ) ( ) ( )889千克 = 吨 36秒 = 分 91公顷 = km2 9cm = dm 66cm = dm 225dm3 = m3 79dm = m 39cm2 = dm2 775mL = L 三、用分数表示下面各式的商。
2、5 29 30 14 15 9 13 1 15 18 19 1 4 4 13 17 7 5 13 18 400 ( ) 1 104 5 = = ( ) 13 = ( ) 6 139cm = dm 18cm = dm 365dm3 = m3 18dm = m 17cm2 = dm2 834mL = L 434千克 = 吨 87秒 = 分 39公顷 = km2 9cm = dm 27cm = dm 919dm3 = m3 17dm = m 13cm2 = dm2 986mL = L 3 20 10 11 7 1 34 10 3 5 4 11 23 4 7 13 14 200 ( ) 1 18 17
3、 = = ( ) ( ) 9 134cm = dm 99cm = dm 844dm3 = m3 57dm = m 75cm2 = dm2 381mL = L 349千克 = 吨 65秒 = 分 49公顷 = km2 6cm = dm 85cm = dm 671dm3 = m3 27dm = m 87cm2 = dm2 576mL = L 11 1 5 8 9 7 33 34 4 5 6 1 4 13 17 7 11 15 15 600 13 = = ( ) 3 = ( ) 8 38cm = dm 56cm = dm 148dm3 = m3 68dm = m 89cm2 = dm2 114mL = L 133千克 = 吨 61秒 = 分 49公顷 = km2 2cm = dm 83cm = dm 910dm3 = m3 59dm = m 55cm2 = dm2