CN201616038U - Abacus specially used for abacus arithmetic and mental arithmetic - Google Patents
Abacus specially used for abacus arithmetic and mental arithmetic Download PDFInfo
- Publication number
- CN201616038U CN201616038U CN2010201490594U CN201020149059U CN201616038U CN 201616038 U CN201616038 U CN 201616038U CN 2010201490594 U CN2010201490594 U CN 2010201490594U CN 201020149059 U CN201020149059 U CN 201020149059U CN 201616038 U CN201616038 U CN 201616038U
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- China
- Prior art keywords
- abacus
- arithmetic
- mental arithmetic
- mental
- specially used
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an abacus specially used for abacus arithmetic and mental arithmetic. The abacus comprises an abacus body; beads are strung on beams on the front side of the abacus body; mental arithmetic beads are arranged at the back of the abacus body; and the mental arithmetic beads are in three sets, with five in each set. The utility model has the benefits that as mental arithmetic beads are arranged at the back of the abacus body, the abacus can be used for mental arithmetic, which provides more functions for the abacus.
Description
Technical field
The utility model relates to a kind of computational tool, particularly a kind of abacus.
Background technology
Abacus as a kind of special teaching aid can intuitively reflect add, subtract, computation process such as multiplication and division, but existing abacus function singleness only has the rechoning by the abacus function.
Summary of the invention
At the deficiency of above-mentioned technology, the utility model provides a kind of special-purpose abacus with rechoning by the abacus and two kinds of functions of mental arithmetic.
To achieve these goals, technical solution adopted in the utility model is: a kind of rechoning by the abacus, the special-purpose abacus of mental arithmetic, comprise the abacus body, and string has bead, the back side of abacus body to be provided with mental arithmetic pearl mimic panel on the beam in the front of abacus body.
Described mental arithmetic pearl has 3 groups, and every group has 5 beads or 9 pearls.
The beneficial effects of the utility model: the back side of abacus is provided with mental arithmetic pearl mimic panel, can be used for mental arithmetic, easier quicker formation brain image.
Description of drawings
Fig. 1, front view (FV) of the present utility model;
Fig. 2, reverse side figure of the present utility model;
Embodiment
As shown in Figure 1 and Figure 2, the special-purpose abacus of a kind of rechoning by the abacus, mental arithmetic comprises abacus body 1, and bead 2, front are arranged is the function that bead has common abacus to string on the beam in the front of abacus body 1.The back side of abacus body is provided with mental arithmetic pearl 3, the total 1-3 group of mental arithmetic pearl, and every group has 5 beads or 9 pearls, and these several numbers are a kind of embodiment of this patent.The mental arithmetic pearl 3 at the abacus back side can be used for mental arithmetic, easier quicker formation brain image.
Claims (2)
1. a rechoning by the abacus, the special-purpose abacus of mental arithmetic comprise abacus body (1), and string has bead (2) on the beam in the front of abacus body (1), it is characterized in that the back side of abacus body (1) is provided with mental arithmetic pearl (3).
2. rechoning by the abacus according to claim 1, the special-purpose abacus of mental arithmetic is characterized in that described mental arithmetic pearl (3) has 3 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201490594U CN201616038U (en) | 2010-04-02 | 2010-04-02 | Abacus specially used for abacus arithmetic and mental arithmetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201490594U CN201616038U (en) | 2010-04-02 | 2010-04-02 | Abacus specially used for abacus arithmetic and mental arithmetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616038U true CN201616038U (en) | 2010-10-27 |
Family
ID=43002405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201490594U Expired - Fee Related CN201616038U (en) | 2010-04-02 | 2010-04-02 | Abacus specially used for abacus arithmetic and mental arithmetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616038U (en) |
-
2010
- 2010-04-02 CN CN2010201490594U patent/CN201616038U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20120402 |