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            • 1. 直接写出得数
              30×20=24×5=6×500=25×4=35×35=
              0.9+0.6=3.2-0.8=
              3
              6
              +
              2
              6
              =
              5
              7
              -
              2
              7
              =
              24×11=
            • 2. 直接写出得数.
              600×5=430+190=605×4=47×8≈
              59×0=140×5=890-540=306×4≈
              3
              8
              +
              5
              8
              =
              4
              9
              -
              2
              9
              =
              1-
              2
              5
              =
              420-280=
            • 3. 直接写得数
              3
              9
              +
              4
              9
              =
              1-
              1
              20
              =
              1
              4
              +
              1
              5
              =
              0.13=
              1
              2
              -
              3
              7
              +
              3
              7
              =
              5
              1
              2
              -
              1
              2
              =
              11
              8
              -
              1
              8
              =
              7
              10
              -0.3=
              1÷6=
              5
              6
              +
              2
              5
              +
              1
              6
              =
            • 4. 直接写得数:
              1-0.37=1.62+0.38=14-1.4=42×5÷42×5=0.08×1000=
              93÷1000=32×125=16.8-4.12-5.88=58×46-48×46=
              45
              78
              -
              28
              78
              =
            • 5. 直接写出得数.
              5
              12
              ×3=
              4
              7
              =
              1
              6
              ÷
              1
              6
              =
              4
              5
              ×
              5
              8
              =
              0.6÷
              3
              5
              =
              4-3
              3
              5
              =
              4
              3
              -
              1
              3
              ×3=
              3
              4
              ÷
              1
              2
              =
            • 6. 直接写得数.
              3÷8=
              8
              3
              +
              4
              3
              =
              15
              8
              -
              3
              8
              =
              5.4×101-5.4=
              8.4÷0.6=1.2×0.05=34-18.2=3.6×4÷3.6÷4=
            • 7.
              口算我能行

              6-
              7
              10
              =
              1
              2
              -
              1
              3
              =
              2-
              5
              6
              =
              1-7÷9=
              5
              17
              +
              5
              9
              )×0=
              5
              7
              +
              7
              8
              +
              2
              7
              =
              5-
              6
              9
              -
              3
              9
              =
            • 8. 直接写出得数
              13.7+6.23=
              3
              5
              -
              2
              7
              =
              5.6÷0.875=3÷4+0.25=
              3
              8
              ×
              4
              9
              =
              5-5×
              1
              5
              =
              (
              3
              20
              -
              3
              20
              3
              32
              =
              7
              15
              ×(
              3
              4
              +25%)
              =
            • 9. 直接写出得数.
              42+24=20×5=100-13=40-18=
              12×4=11×50=15×2=2000+400=
              78-69=35+17=123÷3=404÷4=
              0.4+0.5=3.7-1.7=8.5-4.2=6.4+3=
              1
              5
              +
              3
              5
              =
              7
              10
              -
              2
              10
              =
              2
              9
              +
              3
              9
              =
              1-
              5
              8
              =
            • 10. 直接写得数.
              5
              8
              +
              7
              8
              =
              8
              9
              +
              7
              9
              =
              5
              6
              +3
              =
              5
              12
              -
              1
              12
              =
              6
              7
              -
              3
              7
              =
              1
              3
              -
              1
              4
              =
              1-
              1
              3
              =
              1
              5
              +
              1
              6
              =
              3
              4
              -
              3
              4
              =
              5-
              9
              14
              =
            0/40

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