Page 145 - Mathematics_Std_4

7. 35.6 – 24.2 = 8. 64.5 –34.8 =

9. 125.2 –0.7 = 10. 226.5 –122.5 =

11. 27.4 –13.3 = 12. 12.6 –1.4 =
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13. 17.8 –9.7 = 14. 45.1 – 22.8 =

15. 125.2 –94.8 = 16. 0.6 –0.3 =

17. 30.8 –15.3 = 18. 120.2 98.7 =
–

19. 55.1 –54.9 = 20. 235.9 –0.7 =

Subtraction of decimal numbers with more than one decimal
place

In subtracting decimal numbers, start with decimal parts followed
by whole numbers.

Example 1

−0.84 0.21
=
Steps Solution

1. Align the numbers vertically. Start by 0.84
subtracting the numbers on the decimal −0.21
side: −=4 1 3. Write 3 in the decimal place. 0.63

2. Subtract decimals: − =8 2 6. Write 6 in the
decimal place to the left of 3.

3. Subtract whole numbers: − =0 0 0. Write 0
in the whole number place.

=
−
Therefore, 0.84 0.21 0.63.

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MATHEMATICS STD 4 PB 2024.indd 138