Find each sum 1. 56 + (-56) 2. -240 + 370 3. -5.7 + (-4.2)

Mathematics

2 answers:

Zinaida [17]2 years ago

4 0

Answer:

1. 0

2. 130

3. − 9.9

sorry if am wrong

Zolol [24]2 years ago

3 0

Answer:

1. 56 + (-56) = 56 - 56 = 0

2. -240 + 370 = 370-240 = 130

3. -5.7 + (-4.2) = -(5.7+4.2) = -9.9

Let me know if this helps!

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Step-by-step explanation:

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