Page 48 - CT&AI_CLasa_7_Part_1

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)