MATH & LOGIC QUIZZES (PAGE 2)
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MISSING NUMBER
Find the missing number in the following figure:
SOLUTION
Solution: 0
We can see, in fact, that each group of three numbers represents a difference between the two rightmost numbers:
In the first group we have 7-4 = 3.
In the second group we have 11-8 = 3.
So in the third group we have 3-3 = 0.
EXPRESSIONS WITH FIGURES
Based on the following expressions, identify the numerical value to associate with each figure.
SOLUTION
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The exercise is quite simple and younger children can proceed by trial and error.
Otherwise, it is possible to recognize that the expressions shown in the exercise represent a system of equations and therefore it can be solved with one of the many well-known methods in mathematics.
If you have done the calculations well, you will get the following results:
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