Understanding Manufacture & Expiry Dates | 3rd Maths Term 1 Unit 5: Time

Understanding Manufacture & Expiry Dates | 3rd Maths Term 1 Unit 5: Time

3rd Maths : Term 1 Unit 5 : Time

Manufacture and expiry date

Manufacturing date or the date of manufacture refers to the date in which the product is produced.

Expiry date or the date of expiry refers to the date upto which the product can be used. We should not use a product beyond its expiry date.

Example of Manufacture and Expiry Date on a product

Practice

1. Write the manufacture date and expiry date of the following items.

Practice items: honey, food grains, medicine

2. Calculate duration between manufacture and expiry date of the products tabulated below.

Table of products with manufacture and expiry dates

Answer:

2 years

2 years

one month

3 months

1 month

Activity 4

Fill up the date of manufacture and date of expiry of food products you use in daily life.

Activity table to fill in manufacture and expiry dates

Practice

1. Calculate the number of days in the first 5 months of a leap years 2016, 2020 and the ordinary years 2018 and 2023. What do you infer.

Table for calculating days in first 5 months of leap and ordinary years

In leap years, Month of February has 29 days.

2. Draw the clocks for the times given below.

a. Quarter past 9

b. Quarter to 9

c. 10 minutes to 10

d. 10 minutes past 10

e. half past 8

Clocks showing the specified times