Page 122 - New Medley 4 Semester 2 PDF (Merged)

2. Now, take a sketch pen of another colour
3 5 3
and shade next 3 squares. It shows or or 0.5 + or 0.3
10 10 10

0.3 of the strip (here, shaded yellow).

8
3. Together, they show or 0.8 of the strip.
10
5 3 8
That means + = or 0.5 + 0.3 = 0.8
10 10 10

B. Let us add 0.25 and 0.38.
1. Take a sheet of 10 × 10 squares. Shade

25 squares of it with red colour that shows
25
or 0.25 of the sheet.
100

2. Again, shade 38 squares with green colour.
38
It shows or 0.38 of the sheet.
100

3. The two colours together shade 63 squares,
63
i.e., or 0.63 of the sheet.
100

25 38 63
That means + = or 0.25 + 0.38 = 0.63
100 100 100
Now, perform the activity for the following sums:

1. 0.2 + 0.7 2. 0.4 + 0.3 3. 0.15 + 0.24 4. 0.26 + 0.49

120