191k views
3 votes
4.5)38.7
What is the answer

User Hgmnz
by
8.7k points

1 Answer

1 vote

Answer:

If adding, 43.2.

If subtracting, -34.2.

If multiplying, 174.15.

If dividing, 8.6.

Explanation:

Addition: Line up and add.

Subtraction: Add the first number and opposite of the second. 4.5+(-38.7)=-34.2.

Multiplication: Multiply as normal, count up how many decimal places are in the factors (2), and add that to your answer, 174.15.

Division: Turn both number into whole numbers by multiplying by 10. Then divide 387/45= 8.6.

CAN EXPLAIN FURTHER

User Danronmoon
by
7.6k points

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