3 years ago

Why can you use addition to check your substraction

2 answers:

4 0

They are both the inverse of each other, same as multiplying and dividing.

3 0

If you do 7-5 then you get 2. You can check by adding 2+5 to get 7. You do this because this is how you check your work .

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Marizza181 [45]

Answer:
1.953125 or 2, not sure if you need to round.

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3 years ago

frez [133]

Experimental value=13.2mL
actual volume=13.7mL

|13.2-13.7|=|-0.5|=0.5
0.5/13.7 *100%=3.7%

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3 years ago

Alona [7]

Answer: Base Ten Blocks, Number Line, Two Colored Counters

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3 years ago

Anna11 [10]

Answer:

about 7

Step-by-step explanation:

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3 years ago

Yuri [45]

Answer:

I think $21 or $7.88

Step-by-step explanation:

check it again and there you go

6 0

3 years ago