Phase 1 VR Type 20: Balancing equations

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  • The test consists of 15 questions with a total mark of 15.
  • It should not take you longer than 10 minutes to complete this test.
  • After you have typed in an answer, hit the “Check” button to mark your answer.

 

EXAMPLE:

For the following question, find the number that best completes the sum.

                                        6 + 6 = 9 + [ ? ]

Answer: 3

Explanation:

LHS: 6 + 6 = 12

RHS: 9 + ? = 12; 9 + 3 = 12; ? = 3