﻿ Subtracting Decimals Worksheets | Problems & Solutions

Subtracting Decimals Worksheets

Subtracting Decimals Worksheets
• Page 1
1.
Tony borrows $40.40 from his friend. How much is he left with if he spends$16.47?
 a. $23.93 b.$21.93 c. $22.93 d.$25.93

Solution:

Money Tony is left with = Money borrowed - Money spent

= $40.40 -$16.47
[Substitute the values.]

 40.40 [Line up the decimals.] - 16.47 23.93 [Subtract.]

So, Tony is left with $23.93. Correct answer : (1) 2. Find the difference between 17.815 and 4.642.  a. 13.213 b. 13.203 c. 13.193 d. 13.173 Solution: 17.815 - 4.642 [Original expression.]  17.815 [Align the decimal points.] - 4.642 13.173 [Subtract.] The difference is 13.173. Correct answer : (4) 3. 5.523 gallons of juice out of 7.965 gallons was consumed in a party. How many gallons of juice are left?  a. 2.742 b. 2.542 c. 2.642 d. 2.442 Solution: Gallons of juice left = total gallons of juice - gallons of juice consumed = 7.965 - 5.523  7.965 [Align the decimal points.] - 5.523 2.442 [Subtract.] 2.442 gallons of juice is left. Correct answer : (4) 4. A container has 65.456 milliliters of whole milk. Some water was added to it to make it 81.453 milliliters. Find the quantity of water added to the milk.  a. 15.997 milliliters b. 16.997 milliliters c. 18.997 milliliters d. 17.997 milliliters Solution: The container has 65.456 milliliters of whole milk. The amount of milk increased to 81.453 milliliters after adding water to it. The amount of water added to milk = 81.453 - 65.456.  81.453 [Align the decimal points.] - 65.456 15.997 [Subtract.] The amount of water added to milk is 15.997 milliliters. Correct answer : (1) 5. Solve: 506.502 - 302.142  a. 203.361 b. 205.36 c. 204.36 d. 205.359 Solution: 506.502 - 302.142 ............. 204.360 ............. [Align the decimal points.] [Subtract.] The value of the expression is 204.360. Correct answer : (3) 6. Arthur used 686.102 gallons of gas and Jeff used 349.078 gallons of gas in a year. Find the difference between their usages.  a. 342.524 gallons b. 337.024 gallons c. 324.524 gallons d. 349.524 gallons Solution: Arthur used 686.102 gallons of gas and Jeff used 349.078 gallons of gas. The difference between their usages is 686.102 - 349.078 686.102 - 349.078 ................ 337.024 ................ [Align the decimal points.] [Subtract.] The difference between their usages of gas is 337.024 gallons. Correct answer : (2) 7. Dennis has$86.25 and Edward has $39.15. How much more does Dennis have?  a.$49.10 b. $125.40 c.$47.10 d. $4.710 Solution: The money Dennis has more than Edward = money Dennis has - money Edward has = 86.25 - 39.15. [Substitute the amounts.] 86.25 - 39.15 .......... 47.10 .......... [Align the decimal points.] [Subtract.] Dennis has$47.10 more than Edward.

8.
Water level of a lake increased to 13.45 feet from its original level of 5.35 feet. Find the increase in the water level.
 a. 7.10 feet b. 18.80 feet c. 8.10 feet d. 81.00 feet

Solution:

= 13.45 - 5.35
The increase in the water level = the water level after heavy rain - original water level
[Substitute the water level values.]

13.45
- 5.35
.........
8.10
.........

[Align the decimal points.]

[Subtract.]

The increase in the water level is 8.10 feet.

9.
A mixture of two salts, A and B, weighs 14.28 grams. If salt A weighs 6.36 grams, find the weight of salt B.
 a. 20.64 grams b. 6.92 grams c. 79.20 grams d. 7.92 grams

Solution:

= 14.28 - 6.36
The weight of salt B = total weight of mixture - weight of salt A
[Substitute the weights.]

14.28
- 6.36
...........
7.92
...........

[Align the decimal points.]

[Subtract.]

The weight of salt B is 7.92 grams.

10.
Solve:
28.069 - 3.081
 a. 23.988 b. 26.988 c. 24.988 d. 25.988

Solution:

28.069 - 3.081
[Original expression.]

28.069
- 3.081
.............
24.988
.............

[Align the decimal points.]

[Subtract.]

The value of the expression is 24.988.