Page 83 - Code & Click - 4

Step 2: We need to use multiplication to calculate the total cost

Step 3: We carry out the calculation: 20 × 35 = 700
Step 4: The total cost of 20 pens is ₹ 700.

STEPWISE THINKING Step 1
The process of developing the steps to solve a problem is called
Stepwise Thinking. The solution of a problem may involve more Step 2
than one step. Some steps might be composed of smaller steps
in order to understand the solution completely. Step 3

SEQUENCE OF STEPS
Most activities have multiple steps that need to be carried out in order to perform a

task involved. The order of steps for solving a problem is called Sequence of steps.
Some tasks involve a fixed sequence of steps. For example, to change the used battery
in a clock, the sequence of steps to be performed is:

1. Remove the exhausted battery from the clock.
2. Take a fresh battery and install it in the clock.
3. Set the correct time on the clock.
4. Dispose the used battery carefully in the dustbin.

Some tasks have steps that can be carried out in different sequences but produce the

same result.
For example, to make a drawing of a robot, the sequence of steps to follow can be any

one of the two given below:
Sequence 1:

Sequence 2:

81