Question

David has a total amount of $\$$6.78 with him. If he spends $\$$4.33, the remaining amount is .

• A. $\$$2.45
• B. $\$$2.54
• C. $\$$2.35
• D. $\$$2.53

Answer 1

The correct option is A $\$$2.45

Total initial amount = $\$$6.78
Amount spent = $\$$4.33
∴ Remaining amount = $\$$(6.78 - 4.33)

The digits in the decimals can be represented as:


So, the decimals 6.78 and 4.33 can be represented as:


Calculating 6.78 - 4.33 using models, we get:


The final difference is represented by 2 flats, 4 rods, and 5 blocks.

So, 6.78 - 4.33 = 2.45

∴ The remaining amount is $\$$2.45.