【单选题】. --- Mr Smith, __________ girl wants to see you. --- If that’s __________ girl who has fair hair and wears a red dress, I want to see her.
【简答题】估算。 19×39≈ 31×21≈ 42×59≈ 13×28≈ 48×29≈ 51×51≈
【单选题】3, 10, 21, 35, 51, ( )
【单选题】—What does your uncle do? —_____. [ ]
C.
He often plays tennis after school
【简答题】直接写得数. 51÷3= 990-99= 26×4= 59+41= 990÷11= 90÷6= 95÷5= 480÷8= 300-157= 3×43= 45万+67万= 9×8÷9×8=
【简答题】估算 74×22≈ 51×68≈ 59×92≈ 298+205≈ 432-228≈ 82÷8≈ 38×53≈ 77÷4≈
【简答题】47×67+35 2 -51×59+0.0 . 7 +14.9 . 2 =______.
【简答题】比较大小。 34+5○5+34 59-5○51+5 88-8○99-9 24+3○28-3
【单选题】Big cites today are confronted with very serious problems. Transport is a【C1】______difficulty: some planners believe in【C2】______transport system;others believe in making it possible for citizens to m...