Page 149 - Mathematics_Std_4

9. The weight of the beans is 3.275 tonnes and the weight of

rice is 5.45 tonnes. Find the difference between the weight
of the rice and the weight of the beans.
FOR ONLINE READING ONLY
10. The tanks have capacities of 375.75 litres, 424.25

litres and 522.85 litres. Find the total capacity of these
tanks.

Activity Learn more about how to perform addition
and subtraction of decimals using reliable
online lessons.

Description

Use various programs such as Khan Academy to learn
more about recognizing decimals with different place value

and how to correctly perform addition and subtraction of
decimals.

Summary

1. Decimals are read from left to right. The digits to the left of
the decimal point are read as a whole number. The digits

to the right of the decimal point are read one by one.

2. When adding or subtracting decimal numbers, consider
the value of the digits or the place value of the digits

before and after the decimal point.

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06/11/2024 17:17:51
MATHEMATICS STD 4 PB 2024.indd 142
MATHEMATICS STD 4 PB 2024.indd 142 06/11/2024 17:17:51