It is about basic abacus with formulas of Big Friend or Complements of 10. The first 20 sums are direct sums without formulas and rest 50 Sums are with Big Friend formula. The formula for Big Friend and Syllabus are given below :

Beta Group - Level 1 SET A - For Grade 2 to 4 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Direct sum Single/Double Digit 3 Rows | |

20 Questions | Big Friend Addition Subtraction Double Digit 3 Rows | |

30 Questions | Mix Zigzag sums Double & Single Digit 4 Rows | |

All sums to be calculated with Abacus. click here to see the sample paper. |

Beta Group - Level 1 SET B - For Grade 5 to 8 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Direct sum Single/Double Digit 3 Rows | |

20 Questions | Big Friend Addition Subtraction Double Digit 4 Rows | |

30 Questions | Mix Zigzag sums Double & Single Digit 4 Rows | |

All sums to be calculated with Abacus. click here to see the sample paper. |

Big Friend Addition / Subtraction Formula | ||

Friend | Addition Formula | Subtraction Formula |

Big Friend of 9 is 1 | +9 = +10 - 1 | -9 = -10 + 1 |

Big Friend of 8 is 2 | +8 = +10 - 2 | -8 = -10 + 2 |

Big Friend of 7 is 3 | +7 = +10 - 3 | -7 = -10 + 3 |

Big Friend of 6 is 4 | +6 = +10 - 4 | -6 = -10 + 4 |

Big Friend of 5 is 5 | +5 = +10 - 5 | -5 = -10 + 5 |

Big Friend of 4 is 6 | +4 = +10 - 6 | -4 = -10 + 6 |

Big Friend of 3 is 7 | +3 = +10 - 7 | -3 = -10 + 7 |

Big Friend of 2 is 8 | +2 = +10 - 8 | -2 = -10 + 8 |

Big Friend of 1 is 9 | +1 = +10 - 9 | -1 = -10 + 9 |

Level 2 comprises Small friend formula Base as 5 and Combination formula or Family from +/- 6,7,8,9. The formula for Small Friend, Combination and Syllabus are given below :

Beta Group - Level 2 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Big Friend Addition Subtraction Single/ Double Digit 4 Rows | |

20 Questions | Small Friend Addition Subtraction Single/Double Digit 3 Rows/4 Rows | |

20 Questions | Mix Zigzag sums Double & Single Digit 3/4 Rows | |

10 Questions | Mix Questions on all Formulas 6 Rows | |

All sums to be calculated with Abacus. click here to see the sample paper. |

Small Friend Addition / Subtraction Formula | ||

Friend | Addition Formula | Subtraction Formula |

Small Friend of 4 is 1 | + 4 = - 1 + 5 | - 4 = + 1 - 5 |

Small Friend of 3 is 2 | + 3 = - 2 + 5 | - 3 = + 2 - 5 |

Small Friend of 2 is 3 | + 2 = - 3 + 5 | - 2 = + 3 - 5 |

Small Friend of 1 is 4 | + 1 = - 4 + 5 | - 1 = + 4 - 5 |

Combination or Family Addition / Subtraction Formula | ||

Combination Friends | Addition Formula | Subtraction Formula |

Combination Friend of 6 is 1 | + 6 = + 10 - 5 + 1 | - 6 = - 10 + 5 - 1 |

Combination Friend of 7 is 2 | + 7 = + 10 - 5 + 2 | - 7 = - 10 + 5 - 2 |

Combination Friend of 8 is 3 | + 8 = + 10 - 5 + 3 | - 8 = - 10 + 5 - 3 |

Combination Friend of 9 is 4 | + 9 = + 10 - 5 + 4 | - 9 = - 10 + 5 - 4 |

Beta 3 comprises level 3 where all formulas of Direct, Small Friend, Big Friend and Combination are being used. Students learning Level 3 in abacus and Level 4 can appear in BETA 3. Syllabus is given below :

Beta Group - Level 3 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Addition Subtraction Single Digit 8 Rows | |

20 Questions | Addition Subtraction Double Digit 4 Rows | |

20 Questions | Addition Subtraction Three Digit 2 Row | |

10 Questions | Mix Zigzag Questions Single/Double Digit 5 rows | |

All sums to be calculated with Abacus. click here to see the sample paper. |

Beta 4 comprises Direct ,Small friend big friend and Combination along with multiplication and division sums. Students learning Level 4 in abacus and Level 5 can appear in BETA 3. Syllabus is given below :

Beta Group - Level 4 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Addition Subtraction Double Digit 6 Rows | |

20 Questions | Addition Subtraction three Digit 2 Rows | |

10 Questions | Multiplication Double Digit by Single Digit (11X1) | |

10 Questions | Division Three-Digit by Single Digit (111/1) | |

10 Questions | Mix Zigzag Questions Single/Double Digit 6 Rows | |

All sums to be calculated with Abacus. click here to see the sample paper. |

Beta 5 comprises the advanced level of Abacus where all formulas Direct ,Small friend, Big friend and Combination along with Multiplication and Division sums are being used. Students learning Level 5 in abacus can appear in Beta 5. Syllabus is given below :

Beta Group - Level 5 | ||

Total Question - 70 | Total Time - 05 Min | Total Marks - 70 |

20 Questions | Addition Subtraction Double Digit 6 Rows | |

20 Questions | Addition Subtraction three Digit 3 Rows | |

10 Questions | Multiplication Three-Digit by single Digit (111X1) | |

10 Questions | Division Four Digit by Single Digit (1111/1) | |

10 Questions | Multiplication Two Digit by Two Digit (11X11) | |

All sums to be calculated with Abacus. click here to see the sample paper. |