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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. 下面各题计算正确的是(  )
              A.
              5
              7
              +
              5
              8
              =
              8
              30
              =
              2
              15
              B.
              15
              21
              -
              10
              21
              =
              5
              21
              C.
              20
              21
              -
              10
              11
              =
              10
              10
              =1
              D.
              1
              10
              +
              3
              7
              =
              4
              70
              =
              2
              35
            • 4. 口算:
              1
              3
              +
              1
              4
              =
              3
              4
              +
              1
              8
              =
              1
              3
              -
              1
              6
              =
              2
              5
              +
              1
              5
              =
              5
              7
              +
              1
              6
              =
              1-
              5
              13
              =
              3
              8
              -
              1
              7
              =
              2
              5
              +
              3
              10
              =
            • 5. 直接写得数
              3
              2
              5
              +0.3=
              3
              4
              ×
              5
              6
              =
              1
              4
              1
              3
              =
              7
              10
              ×10×
              3
              14
              =
              1-
              2
              5
              +
              3
              5
              =
              3
              2
              ×
              2
              3
              =
              1
              6
              ×
              2
              3
              ÷
              1
              3
              =
              3
              4
              ÷7×
              3
              4
              =
              9-0.9=72÷0.4=
            • 6. 一根绳子长4米,剪去
              3
              8
              ,还剩    米,再剪去
              1
              2
              米,还剩    米.
            • 7. 直接写出得数.
              113-98=0.47+0.34=0.25×4=1-0.01=
              1
              6
              +
              5
              6
              =
              1-
              3
              8
              =
              5
              9
              +
              8
              9
              =
              21
              23
              -
              17
              23
              =
              1
              8
              +
              5
              8
              =
              5
              6
              -
              1
              6
              =
              9
              14
              -
              5
              14
              =
              11
              25
              +
              9
              25
              =
            • 8. 分数加减法的运算顺序与整数加减法的运算顺序相同.    (判断对错)
            • 9. 计算
              7
              12
              -
              1
              8
              -
              7
              24

              8
              15
              +
              2
              5
              +
              1
              2

              7
              9
              +
              5
              6
              -
              1
              2

              3
              4
              +
              1
              5
              -
              3
              8
            • 10. 直接写出得数
              1-
              9
              11
              =
              2
              7
              +
              5
              7
              =
              10
              13
              -
              6
              13
              =
              1
              4
              -
              1
              6
              =
              1
              2
              +
              1
              3
              =
              7
              8
              -
              1
              2
              =
              5
              6
              +
              1
              3
              =
              8
              9
              -
              2
              3
              =
              7
              10
              +
              1
              4
              =
              0.125×0.8=1+
              5
              6
              =
              2-0.65=
            0/40

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