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            • 1. 直接写出得数.
              67%+1.33=
              1
              3
              +
              1
              5
              =
              2
              3
              =
              0.12=
              13.2-2.5=1-
              3
              8
              =
              3
              5
              ×
              5
              9
              =
              0.5÷0.7=
            • 2. 直接写得数.
              2
              3
              =
              3
              4
              ÷12=
              4-
              6
              7
              =
              12
              13
              ÷4=
              1
              2
              ÷
              1
              3
              =
              1
              5
              ÷5=
              1
              5
              =
              8
              9
              ÷
              1
              8
              =
              4
              5
              ÷
              8
              15
              =
              1
              3
              ÷20=
              4
              9
              ÷
              2
              9
              =
              8+
              1
              8
              =
            • 3. 直接写出得数.
              1
              5
              -
              1
              6
              =
              5
              8
              ×
              2
              3
              =
              3
              16
              ×
              4
              9
              =
              2
              7
              ÷
              4
              7
              =
              1
              2
              +
              1
              4
              =
              7
              12
              ×
              3
              14
              =
              12÷
              3
              4
              =
              12
              13
              ÷4=
            • 4. 直接写出得数.
              5
              12
              =
              5
              8
              -
              1
              4
              =
              5
              6
              ÷6=
              13
              18
              ×
              9
              39
              =
              7
              9
              =
              3
              4
              +
              1
              2
              =
              10
              7
              ÷
              5
              21
              =
              20×80%=
            • 5. 直接写出得数.
              6-4
              3
              5
              =
              0.9×100=
              2
              3
              +
              1
              4
              =
              0.7÷3.5=0.8×125×4.6=
              4
              7
              +
              5
              8
              +
              3
              8
              =
            • 6. 直接写出得数.
              5
              8
              +
              7
              8
              =
              1-
              1
              10
              =
              4
              9
              +
              1
              3
              =
              3
              4
              +
              3
              8
              =
              6
              7
              -
              2
              7
              =
              1
              3
              -
              1
              4
              =
              5
              6
              -0.5=
              50÷150=
            • 7. 直接写出得数
              2
              7
              ×2=
              7
              12
              +
              1
              2
              =
              4×(
              1
              12
              +
              1
              4
              )=
              1
              2
              ×99+99×
              1
              2
              =
              1÷37.5%=
              14
              19
              ÷
              7
              19
              =
              1
              4
              -
              1
              5
              )×20=
              1
              6
              +
              5
              6
              ×
              1
              5
              =
            • 8. 口算.
              30×8=400×5=60÷2=88÷4=
              7×300=4×600=24×5=42÷7=
              5×700=64÷8=7×200=21÷3=
              60g+8g=540kg-30kg=1吨-500千克=1-
              1
              3
              =
            • 9. 在括号里填上适当的数.
              (1)
              2
              7
              +
              ()
              ()
              =1
              (2)
              7
              12
              -
              ()
              ()
              =
              ()
              12
              =
              1
              6

              (3)
              ()
              ()
              -
              2
              15
              =
              11
              15
               
              (4)
              5
              21
              +
              ()
              21
              =
              9
              21
              =
              3
              ()
            • 10. 直接写出计算结果:
              (1)2007-615=                  
              (2)8÷20=    
              (3)
              3
              8
              +
              1
              3
              =                   
              (4)
              6
              25
              +
              5
              12
              =    
            0/40

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