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Page 48 - CT&AI_CLasa_7_Part_1
P. 48

    Another Peek

                                                                                Beyond the

                                     4                                                   Point

                                               computational thinking quest

                    Tick ( ) the correct option.

                      1.  You  start  at  0.1 and want to  reach 0.5  by     4.  In the multiplication
                         adding  the  same  number each  time.  There         0.A  × 0.A =  0.0B , where A  and  B  are
                         are 3 empty boxes in between.
                                                                             different digits.
                               0.1                         0.5
                                                                             Which value can A be?  (Analytical Thinking)
                         What number should you add each time?
                                                (Pattern Recognition)               (a)  1              (b)  2

                                (a)  0.1            (b)  0.01                       (c)  4              (d)  9

                                (c)  0.2            (d)  0.4              5.  A robot takes first move of 12.8 meters. After
                                                                             every move it hits a wall and the next distance
                      2.  I am  a number  with two  digits  after the        becomes half.
                         decimal point.
                                                                             If it hits 3 walls, how far will it move the 4th
                         •  My tenths digit is twice my ones digit.
                                                                             time?                  (Pattern Recognition)
                         •   My hundredths digit is the sum of my ones
                           and tenths digits.                                       (a)  6.4 m

                         •  My ones digit is 2.
                         Who am I?              (Algorithmic Thinking)              (b)  3.2 m
                                (a)  2.42           (b)  2.46                       (c)  1.6 m

                                (c)  4.26           (d)  2.24                       (d)  0.8 m
                      3.  Look at the pattern: 1000, 100, 10, 1, 0.1, ...    6.  A balance scale has 0.5 kg on the left side.
                         What are the next two numbers?                      On  the  right side,  there are three identical
                                                                             weights of x kg and one weight of 50 g. What
                                                (Pattern Recognition)
                                                                             is the value of x?      (Analytical Thinking)
                                (a)  0.01, 0.001
                                                                                    (a)  0.15
                                (b)  0.11, 0.111                                    (b)  1.5

                                (c)  0.0, -0.1                                      (c)  0.45

                                (d)  0.2, 0.3                                       (d)  0.11

                     46        Computational Thinking-7 (Mathematics)

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