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Question
What does 0.9 cm mean? It is the same as ______ millimeters. We can also say this is nine-tenths of a cm. Right?
So 30.5 cm is the same as ______ cm and ______ millimetre.
About how many of the big frogs will fit on the 1 m scale? _______
If they sit in a straight line about how many of the small frogs will cover 1 m? _______
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Solution
We know that, 1 cm = 10 mm So, 0.9 cm = 9 mm 0.9 cm means 9 mm
It is the same as 9 millimeters.
So 30.5 cm is the same as 30 cm and 5 millimeters.
Now, 30.5 cm = 30 cm and 5 mm
We know that, 1 m = 100 cm
Length of the biggest frog = 30.5 cm Thus, a maximum of 3 big frogs can fit on a 1 m scale.
Length of each small frog = 0.9 cm Thus, a maximum of 111 small frogs can sit in a straight line and cover 1 m.
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Which city is cool?
The temperature in each city was noted at 3 p.m. on 16 January 2008.
- Which place had the highest temperature at 3 pm? Which place is the coolest at that time?
Which city is cool?
The temperature in each city was noted at 3 pm on 16 January 2008.
- How many degrees will the temperature need to rise for it to reach 40°C in Thiruvananthapuram?
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The temperature in these cities was also noted at 3 am on the same day. Look at the table
| City | Temperature at 3 am |
| Chennai | 21.1 |
| Mumbai | 19.0 |
| Th'puram | 21.6 |
| Kolkata | 13.1 |
| Bhopal | 9.8 |
| Srinagar | 1.3 |
| Guwahati | 12.8 |
| Jaipur | 10.2 |
- Which place had the lowest temperature at 3 am? Imagine yourself being there and describe how it would feel.
